無料
（通常 ¥150）
App Store で開く
アプリ内課金あり
iPhone / iPad 対応
12.6MB
年齢4+
Carats: Gemstone Calculatorはどんなアプリ？
Carats: Gemstone Calculatorは、宝石の重さを推定し在庫を管理するためのユーティリティです。
ミリ単位の計測値から正確なカラット換算を行うため、カット形状や比重などの詳細な数値を反映した計算が行えます。個々の石に写真や証明書を紐付けて登録できるので、仕入れ先や保管場所をあわせて管理する仕組みが備わっています。複数の石をまとめて見積書に載せることもでき、取引に必要な情報を整理して正確な価格提示を支えます。
宝石の鑑定や販売に携わるプロの現場で、正確な計算と効率的な在庫管理を両立したい場面にぴったりです。鑑定士や宝石商が、実際の仕入れコストや加工費を含めた利益の把握を円滑に進めるために便利です。
アノアプリによる紹介文です。デベロッパー公式の説明はApp Storeでご確認いただけます。
Carats: Gemstone Calculatorの注目ポイント
ミリ単位の計測値からの推計
ミリ単位で測定した数値を入力すると宝石の重さが計算されます。正確なデータに基づいてカラット換算を行うため、現場での見積もりもスムーズに進みます。
多様な石の基準データの参照
ダイヤモンドやルビー、サファイアなど多種多様な石のデータが参照できます。石の種類ごとに異なる特性を反映した計算が行えるため、正確な推計に便利です。
カット形状や比重を考慮した算出
カッティングの形や比重を考慮して重量を導き出します。厚みや反りなどの細かい数値を個別に設定できるため、特殊な形をした石の計算も正確に行えます。
写真や証明書を紐付けた在庫管理
個々の石に写真や鑑定書を添付して記録を残せます。仕入れ先や保管場所の情報を一括で管理できるため、大量の在庫を整理する際に役立ちます。
価格履歴
現在は無料です。過去95日間で最も長く続いた価格は150円でした。この間に1回値下げされ、値上げはありませんでした。
アノアプリが独自に収集した価格履歴をもとに分析しています。
- 買い時判定
- 記録上の最安値
- 直前の価格から
- 100%オフ
- 最頻価格
- ¥150
- 記録上の最安値
- 無料
価格更新履歴
| 日付 | 価格 |
|---|---|
| 2026-10-08 | 無料 |
| 2026-08-08 | ¥150 |
ランキング推移
ユーティリティ（有料）：最終圏内 76位（2026年08月14日）
ユーザーレビュー （当サイト投稿）
まだレビューがありません。最初のレビューを書いてみましょう。
アプリ更新履歴 活発に更新中
Ver 9.3 2026-11-01
Your eye for detail deserves clear records. Thank you for using Carats. This update adds inventory, stone costs, customer quotes and receipts to help you follow each sale. These management tools are included with Carats Pro.
GEMSTONE INVENTORY
- Give each stone, parcel or matched pair its own stock ID.
- Add actual photographs and certificate attachments.
- Keep supplier, acquisition cost and storage location together.
- Review available, reserved and sold quantities.
- Link stock to saved calculations and sales.
- Find records by stone, stock ID, supplier or location.
ESTIMATED AND MEASURED WEIGHTS
- Keep scale readings separate from calculated estimates.
- Record when and how each weight was obtained.
- Compare estimated and measured weight for the same selection.
- Choose the weight basis shown on a customer quote.
- Keep original observations when you record a fresh measurement.
COSTS AND PROFIT
- Include purchase, cutting, setting and shipping costs.
- Track selling fees and seller-paid commission.
- Compare profit, markup and margin before tax.
- Keep unknown acquisition costs clearly marked.
- Record dated cost corrections with a reason.
- Retain completed sale history when later costs change.
CUSTOMER QUOTES AND RECEIPTS
- Combine selected stones in a quote with photos and dimensions.
- Show the chosen weight basis and price for each selection.
- Add business details, a logo and an acceptance deadline.
- Record customer deposits, payments and refunds.
- Review the balance still due.
- Share quote and payment or refund receipt PDFs.
- Keep internal costs and commissions out of customer documents.
- Retain issued PDFs after inventory details change.
PARCELS AND MATCHED PAIRS
- Record physical quantities and total measured weight.
- Reserve stock for a customer.
- Split a matched pair when you need individual stone records.
- Move stones from a parcel into their own stock records.
- Allocate costs and track partial sales and remaining stock.
- Record physical returns separately from money refunds.
BRING YOUR SPREADSHEETS
- Match CSV columns to the inventory fields you use.
- Review a preview, row errors and duplicate stock IDs.
- Bring across sold and reserved stock with its original dates.
- Match actual photograph and certificate files before importing.
- Download sample templates to prepare your inventory.
- Back up your complete workspace, including saved media and PDFs.
REUSE MEASUREMENT SETTINGS
- Save named density and profile presets.
- Apply settings while keeping the current stone's dimensions.
- Duplicate a stock record with its original measurement history.
- Confirm separate physical stock before using a duplicate.
- Revisit Advanced Gem measurements for custom cuts and profiles.
FREE CALCULATIONS AND PRO
- Try five free calculations a day for five consecutive calendar days.
- Start day one with your first valid free Calculate request.
- Use up to 25 calculations; inactive days still count.
- See remaining uses, calendar days and the allowance end date.
- Type and change inputs without spending a use until Calculate.
- Keep unlimited live results and interactive calculator graphs with Pro.
- Choose monthly or lifetime Pro access.
- Continue viewing, sharing and exporting existing records without Pro.
ABOUT AND APPLE WATCH
- Find support, website, privacy and terms links on About and in its menu.
- Keep weight and gauge tools close at hand on Apple Watch.
- Use the separate Watch tools and sharing without a usage limit.
Unused daily calculations do not roll over. Monthly Pro renews automatically until canceled. Gemstone weights remain estimates; use a scale for actual weight.
GEMSTONE INVENTORY
- Give each stone, parcel or matched pair its own stock ID.
- Add actual photographs and certificate attachments.
- Keep supplier, acquisition cost and storage location together.
- Review available, reserved and sold quantities.
- Link stock to saved calculations and sales.
- Find records by stone, stock ID, supplier or location.
ESTIMATED AND MEASURED WEIGHTS
- Keep scale readings separate from calculated estimates.
- Record when and how each weight was obtained.
- Compare estimated and measured weight for the same selection.
- Choose the weight basis shown on a customer quote.
- Keep original observations when you record a fresh measurement.
COSTS AND PROFIT
- Include purchase, cutting, setting and shipping costs.
- Track selling fees and seller-paid commission.
- Compare profit, markup and margin before tax.
- Keep unknown acquisition costs clearly marked.
- Record dated cost corrections with a reason.
- Retain completed sale history when later costs change.
CUSTOMER QUOTES AND RECEIPTS
- Combine selected stones in a quote with photos and dimensions.
- Show the chosen weight basis and price for each selection.
- Add business details, a logo and an acceptance deadline.
- Record customer deposits, payments and refunds.
- Review the balance still due.
- Share quote and payment or refund receipt PDFs.
- Keep internal costs and commissions out of customer documents.
- Retain issued PDFs after inventory details change.
PARCELS AND MATCHED PAIRS
- Record physical quantities and total measured weight.
- Reserve stock for a customer.
- Split a matched pair when you need individual stone records.
- Move stones from a parcel into their own stock records.
- Allocate costs and track partial sales and remaining stock.
- Record physical returns separately from money refunds.
BRING YOUR SPREADSHEETS
- Match CSV columns to the inventory fields you use.
- Review a preview, row errors and duplicate stock IDs.
- Bring across sold and reserved stock with its original dates.
- Match actual photograph and certificate files before importing.
- Download sample templates to prepare your inventory.
- Back up your complete workspace, including saved media and PDFs.
REUSE MEASUREMENT SETTINGS
- Save named density and profile presets.
- Apply settings while keeping the current stone's dimensions.
- Duplicate a stock record with its original measurement history.
- Confirm separate physical stock before using a duplicate.
- Revisit Advanced Gem measurements for custom cuts and profiles.
FREE CALCULATIONS AND PRO
- Try five free calculations a day for five consecutive calendar days.
- Start day one with your first valid free Calculate request.
- Use up to 25 calculations; inactive days still count.
- See remaining uses, calendar days and the allowance end date.
- Type and change inputs without spending a use until Calculate.
- Keep unlimited live results and interactive calculator graphs with Pro.
- Choose monthly or lifetime Pro access.
- Continue viewing, sharing and exporting existing records without Pro.
ABOUT AND APPLE WATCH
- Find support, website, privacy and terms links on About and in its menu.
- Keep weight and gauge tools close at hand on Apple Watch.
- Use the separate Watch tools and sharing without a usage limit.
Unused daily calculations do not roll over. Monthly Pro renews automatically until canceled. Gemstone weights remain estimates; use a scale for actual weight.
Ver 9.2 2026-10-22
Your eye for detail deserves clear records. Thank you for using Carats. This update adds inventory, stone costs, customer quotes and receipts to help you follow each sale. These management tools are included with Carats Pro.
GEMSTONE INVENTORY
- Give each stone, parcel or matched pair its own stock ID.
- Add actual photographs and certificate attachments.
- Keep supplier, acquisition cost and storage location together.
- Review available, reserved and sold quantities.
- Link stock to saved calculations and sales.
- Find records by stone, stock ID, supplier or location.
ESTIMATED AND MEASURED WEIGHTS
- Keep scale readings separate from calculated estimates.
- Record when and how each weight was obtained.
- Compare estimated and measured weight for the same selection.
- Choose the weight basis shown on a customer quote.
- Keep original observations when you record a fresh measurement.
COSTS AND PROFIT
- Include purchase, cutting, setting and shipping costs.
- Track selling fees and seller-paid commission.
- Compare profit, markup and margin before tax.
- Keep unknown acquisition costs clearly marked.
- Record dated cost corrections with a reason.
- Retain completed sale history when later costs change.
CUSTOMER QUOTES AND RECEIPTS
- Combine selected stones in a quote with photos and dimensions.
- Show the chosen weight basis and price for each selection.
- Add business details, a logo and an acceptance deadline.
- Record customer deposits, payments and refunds.
- Review the balance still due.
- Share quote and payment or refund receipt PDFs.
- Keep internal costs and commissions out of customer documents.
- Retain issued PDFs after inventory details change.
PARCELS AND MATCHED PAIRS
- Record physical quantities and total measured weight.
- Reserve stock for a customer.
- Split a matched pair when you need individual stone records.
- Move stones from a parcel into their own stock records.
- Allocate costs and track partial sales and remaining stock.
- Record physical returns separately from money refunds.
BRING YOUR SPREADSHEETS
- Match CSV columns to the inventory fields you use.
- Review a preview, row errors and duplicate stock IDs.
- Bring across sold and reserved stock with its original dates.
- Match actual photograph and certificate files before importing.
- Download sample templates to prepare your inventory.
- Back up your complete workspace, including saved media and PDFs.
REUSE MEASUREMENT SETTINGS
- Save named density and profile presets.
- Apply settings while keeping the current stone's dimensions.
- Duplicate a stock record with its original measurement history.
- Confirm separate physical stock before using a duplicate.
- Revisit Advanced Gem measurements for custom cuts and profiles.
FREE CALCULATIONS AND PRO
- Try five free calculations a day for five consecutive calendar days.
- Start day one with your first valid free Calculate request.
- Use up to 25 calculations; inactive days still count.
- See remaining uses, calendar days and the allowance end date.
- Type and change inputs without spending a use until Calculate.
- Keep unlimited live results and interactive calculator graphs with Pro.
- Choose monthly or lifetime Pro access.
- Continue viewing, sharing and exporting existing records without Pro.
ABOUT AND APPLE WATCH
- Find support, website, privacy and terms links on About and in its menu.
- Keep weight and gauge tools close at hand on Apple Watch.
- Use the separate Watch tools and sharing without a usage limit.
Unused daily calculations do not roll over. Monthly Pro renews automatically until canceled. Gemstone weights remain estimates; use a scale for actual weight.
GEMSTONE INVENTORY
- Give each stone, parcel or matched pair its own stock ID.
- Add actual photographs and certificate attachments.
- Keep supplier, acquisition cost and storage location together.
- Review available, reserved and sold quantities.
- Link stock to saved calculations and sales.
- Find records by stone, stock ID, supplier or location.
ESTIMATED AND MEASURED WEIGHTS
- Keep scale readings separate from calculated estimates.
- Record when and how each weight was obtained.
- Compare estimated and measured weight for the same selection.
- Choose the weight basis shown on a customer quote.
- Keep original observations when you record a fresh measurement.
COSTS AND PROFIT
- Include purchase, cutting, setting and shipping costs.
- Track selling fees and seller-paid commission.
- Compare profit, markup and margin before tax.
- Keep unknown acquisition costs clearly marked.
- Record dated cost corrections with a reason.
- Retain completed sale history when later costs change.
CUSTOMER QUOTES AND RECEIPTS
- Combine selected stones in a quote with photos and dimensions.
- Show the chosen weight basis and price for each selection.
- Add business details, a logo and an acceptance deadline.
- Record customer deposits, payments and refunds.
- Review the balance still due.
- Share quote and payment or refund receipt PDFs.
- Keep internal costs and commissions out of customer documents.
- Retain issued PDFs after inventory details change.
PARCELS AND MATCHED PAIRS
- Record physical quantities and total measured weight.
- Reserve stock for a customer.
- Split a matched pair when you need individual stone records.
- Move stones from a parcel into their own stock records.
- Allocate costs and track partial sales and remaining stock.
- Record physical returns separately from money refunds.
BRING YOUR SPREADSHEETS
- Match CSV columns to the inventory fields you use.
- Review a preview, row errors and duplicate stock IDs.
- Bring across sold and reserved stock with its original dates.
- Match actual photograph and certificate files before importing.
- Download sample templates to prepare your inventory.
- Back up your complete workspace, including saved media and PDFs.
REUSE MEASUREMENT SETTINGS
- Save named density and profile presets.
- Apply settings while keeping the current stone's dimensions.
- Duplicate a stock record with its original measurement history.
- Confirm separate physical stock before using a duplicate.
- Revisit Advanced Gem measurements for custom cuts and profiles.
FREE CALCULATIONS AND PRO
- Try five free calculations a day for five consecutive calendar days.
- Start day one with your first valid free Calculate request.
- Use up to 25 calculations; inactive days still count.
- See remaining uses, calendar days and the allowance end date.
- Type and change inputs without spending a use until Calculate.
- Keep unlimited live results and interactive calculator graphs with Pro.
- Choose monthly or lifetime Pro access.
- Continue viewing, sharing and exporting existing records without Pro.
ABOUT AND APPLE WATCH
- Find support, website, privacy and terms links on About and in its menu.
- Keep weight and gauge tools close at hand on Apple Watch.
- Use the separate Watch tools and sharing without a usage limit.
Unused daily calculations do not roll over. Monthly Pro renews automatically until canceled. Gemstone weights remain estimates; use a scale for actual weight.
Ver 9.1 2026-10-12
You bring care and a good eye to every stone. Thank you for using Carats for your work and collection. This update gives you more gemstone choices, detailed custom cut measurements and a separate, standalone Apple Watch app.
CARATS ON APPLE WATCH
- Convert carats, grams, points and milligrams at your wrist.
- Use Gauge Sizes to compare inches, millimeters and gauge.
- Open Gauge Guide for a thickness reference.
- Browse gemstone specific gravity and cut factor charts.
- Explore calculator graphs and share results.
- Use all Watch tools without a usage limit or subscription.
- Calculate without an iPhone companion or a saved history.
MORE GEMSTONES AND SPECIES
- Choose from 118 gemstone and material entries.
- Find tanzanite, kunzite, hiddenite, iolite, amber and ametrine.
- Select species including beryl, corundum, spodumene and zoisite.
- Filter the picker by All, Gem varieties or Species.
- Search names, species and specific gravity.
- See species beside gemstone varieties.
MORE CUT CHOICES
- Try Asscher, baguette, princess and radiant cut options.
- Compare brilliant cushion and step cushion variations.
- Use reference cut factors for a standard weight estimate.
- Open Advanced Gem when you want to describe the stone's proportions.
- Choose single or double sided cabochons, including cushion shapes.
A NEW ADVANCED GEM VIEW
- Enter length and width in millimeters.
- Measure height above the girdle, girdle thickness and depth below it.
- Choose a faceted taper, dome, straight sides or a custom volume factor.
- Set upper and lower profiles separately.
- Add table and culet dimensions.
- Describe a cushion outline with its corner radius.
- Review total depth, outline area, estimated volume and carat weight.
- See how the depth is divided above, at and below the girdle.
MEASURE YOUR OWN CUSTOM CUT
- Name an unusual cut and choose the outline that fits.
- Enter a measured outline area for a unique shape.
- Use a directly measured volume when you have one.
- Add a custom gemstone or material name, species and density.
- Keep notes on your measurement method.
- Adjust taper fullness to describe the profile you are estimating.
SAVE AND REVISIT ADVANCED GEMS
- Save an Advanced Gem with Carats Pro.
- Keep its cut, species, density, dimensions and custom measurements together.
- Open a record to review those details and linked sale counts.
- Reuse the measurements to start another estimate.
- Edit the saved title or notes without replacing the original measurements.
- Keep advanced gem details in JSON backups and calculation CSV exports.
- Continue viewing, sharing and exporting existing records without Pro.
THREE WAYS TO REVIEW YOUR GEMS
- Regular Gems shows your saved standard estimates.
- Advanced Gems shows detailed measurements and custom cuts.
- Combined Gems brings both groups into an overview.
- Compare gem counts, estimated carats, average weight and weight ranges.
- Explore gemstone, species and cut charts.
- Follow monthly gemstone activity and open the records behind an overview.
CALCULATORS THAT ARE EASIER TO FIND
- Browse calculator sections with familiar titles and descriptions.
- Search for the tool you need.
- Find Help, Share, Reset and Randomize in the top right menu.
- Read usage help written for the calculator you have open.
- Try an example with Randomize or restore starting values with Reset.
- Open Advanced Gem from its link below the Gem Estimator.
- Explore graphs to compare inputs and outputs.
Carats Pro is required to save or edit calculations, add or edit sales, and import records on iPhone or iPad. Choose monthly or lifetime access. Gem weights remain estimates, so use a scale for actual weight.
CARATS ON APPLE WATCH
- Convert carats, grams, points and milligrams at your wrist.
- Use Gauge Sizes to compare inches, millimeters and gauge.
- Open Gauge Guide for a thickness reference.
- Browse gemstone specific gravity and cut factor charts.
- Explore calculator graphs and share results.
- Use all Watch tools without a usage limit or subscription.
- Calculate without an iPhone companion or a saved history.
MORE GEMSTONES AND SPECIES
- Choose from 118 gemstone and material entries.
- Find tanzanite, kunzite, hiddenite, iolite, amber and ametrine.
- Select species including beryl, corundum, spodumene and zoisite.
- Filter the picker by All, Gem varieties or Species.
- Search names, species and specific gravity.
- See species beside gemstone varieties.
MORE CUT CHOICES
- Try Asscher, baguette, princess and radiant cut options.
- Compare brilliant cushion and step cushion variations.
- Use reference cut factors for a standard weight estimate.
- Open Advanced Gem when you want to describe the stone's proportions.
- Choose single or double sided cabochons, including cushion shapes.
A NEW ADVANCED GEM VIEW
- Enter length and width in millimeters.
- Measure height above the girdle, girdle thickness and depth below it.
- Choose a faceted taper, dome, straight sides or a custom volume factor.
- Set upper and lower profiles separately.
- Add table and culet dimensions.
- Describe a cushion outline with its corner radius.
- Review total depth, outline area, estimated volume and carat weight.
- See how the depth is divided above, at and below the girdle.
MEASURE YOUR OWN CUSTOM CUT
- Name an unusual cut and choose the outline that fits.
- Enter a measured outline area for a unique shape.
- Use a directly measured volume when you have one.
- Add a custom gemstone or material name, species and density.
- Keep notes on your measurement method.
- Adjust taper fullness to describe the profile you are estimating.
SAVE AND REVISIT ADVANCED GEMS
- Save an Advanced Gem with Carats Pro.
- Keep its cut, species, density, dimensions and custom measurements together.
- Open a record to review those details and linked sale counts.
- Reuse the measurements to start another estimate.
- Edit the saved title or notes without replacing the original measurements.
- Keep advanced gem details in JSON backups and calculation CSV exports.
- Continue viewing, sharing and exporting existing records without Pro.
THREE WAYS TO REVIEW YOUR GEMS
- Regular Gems shows your saved standard estimates.
- Advanced Gems shows detailed measurements and custom cuts.
- Combined Gems brings both groups into an overview.
- Compare gem counts, estimated carats, average weight and weight ranges.
- Explore gemstone, species and cut charts.
- Follow monthly gemstone activity and open the records behind an overview.
CALCULATORS THAT ARE EASIER TO FIND
- Browse calculator sections with familiar titles and descriptions.
- Search for the tool you need.
- Find Help, Share, Reset and Randomize in the top right menu.
- Read usage help written for the calculator you have open.
- Try an example with Randomize or restore starting values with Reset.
- Open Advanced Gem from its link below the Gem Estimator.
- Explore graphs to compare inputs and outputs.
Carats Pro is required to save or edit calculations, add or edit sales, and import records on iPhone or iPad. Choose monthly or lifetime access. Gem weights remain estimates, so use a scale for actual weight.
Ver 8.2 2026-10-07
Your attention to detail is one of your key tools. Thank you for using Carats and making it part of your gemstone and jewelry work. This update brings more ways to describe a stone, manage a sale, and keep the customer details that matter.
MORE DETAIL IN GEM WEIGHT ESTIMATES
- Enter length, width, and depth in millimeters.
- Search for a gemstone and select its cut.
- Add optional adjustments for girdle thickness.
- Account for pavilion bulge where appropriate.
- Choose shape observations that apply to the selected cut.
- Read the guidance beside each adjustment.
- Review the total adjustment with your estimate.
- Save a gemstone preview with a calculation using Carats Pro.
The preview gives your saved result a visual reference. Weight estimates remain approximate, so use a scale when you need the stone's measured carat weight.
CUSTOMERS CONNECTED TO YOUR SALES
- Add a customer directly in Carats.
- Import selected customer details from Contacts.
- Save an address and your customer notes.
- Choose a customer while creating or editing a sale.
- Open a customer to see associated sales.
- Open their saved address in Maps.
- Import contact updates when you choose.
- Keep your customer notes when importing updated details.
Removing a customer assignment leaves the sale in place. Your saved customer details stay under your control.
COMMISSIONS AND PAYMENT HISTORY
- Choose a percentage or fixed commission.
- Save a commission as pending or earned.
- Mark a pending commission earned when it becomes due.
- Record a full or partial payment.
- See unpaid balances and payments received this month.
- Adjust a commission and include the reason.
- Reverse a recorded payment while keeping the original entry.
- Review overpayments separately.
- Cancel a sale while keeping its activity history.
Paid and unpaid status follows the remaining commission balance. Amounts stay grouped by currency, so you can review each currency on its own.
SALES AND STATISTICS IN ONE ROUTINE
- Start from dedicated Calculators, Sales, Statistics, and More tabs.
- Browse calculator categories or search for a tool.
- Use the calculator sidebar and detail area on iPad.
- Filter saved sales by status.
- Compare sales activity by month, quarter, or year.
- Browse saved calculations from Statistics.
- Review monthly activity and completed sale weights.
- Compare gemstone and calculator frequency.
- Explore revenue and pricing charts by currency.
- Read chart values in a list.
Sales Overview includes every sale status. Revenue and weight charts use completed sales, while pending sales, canceled sales, and drafts remain visible in record counts.
BACKUPS THAT KEEP RELATED DETAILS TOGETHER
- Export a JSON backup of customers, calculations, and sales.
- Include customer assignments, notes, and addresses.
- Preserve commission settings and payment activity.
- Keep saved gemstone previews with calculation records.
- Export CSV files for a spreadsheet.
- Import compatible files with Carats Pro.
- Add new records while preserving records already saved.
Choose JSON when restoring customers and their related sales together. File and record limits are shown in Import & Export before you proceed.
CARATS PRO AND EVERYDAY TOOLS
- Choose monthly access or a one-time lifetime purchase.
- Restore eligible purchases from the Carats Pro screen.
- Manage monthly subscriptions from the app.
- Keep viewing, sharing, and exporting existing records without Pro.
- Find calculator help, gemstone references, and appearance settings in More.
Saving or editing calculations, adding or editing sales, and importing records require Carats Pro. Monthly access renews automatically until canceled.
MORE DETAIL IN GEM WEIGHT ESTIMATES
- Enter length, width, and depth in millimeters.
- Search for a gemstone and select its cut.
- Add optional adjustments for girdle thickness.
- Account for pavilion bulge where appropriate.
- Choose shape observations that apply to the selected cut.
- Read the guidance beside each adjustment.
- Review the total adjustment with your estimate.
- Save a gemstone preview with a calculation using Carats Pro.
The preview gives your saved result a visual reference. Weight estimates remain approximate, so use a scale when you need the stone's measured carat weight.
CUSTOMERS CONNECTED TO YOUR SALES
- Add a customer directly in Carats.
- Import selected customer details from Contacts.
- Save an address and your customer notes.
- Choose a customer while creating or editing a sale.
- Open a customer to see associated sales.
- Open their saved address in Maps.
- Import contact updates when you choose.
- Keep your customer notes when importing updated details.
Removing a customer assignment leaves the sale in place. Your saved customer details stay under your control.
COMMISSIONS AND PAYMENT HISTORY
- Choose a percentage or fixed commission.
- Save a commission as pending or earned.
- Mark a pending commission earned when it becomes due.
- Record a full or partial payment.
- See unpaid balances and payments received this month.
- Adjust a commission and include the reason.
- Reverse a recorded payment while keeping the original entry.
- Review overpayments separately.
- Cancel a sale while keeping its activity history.
Paid and unpaid status follows the remaining commission balance. Amounts stay grouped by currency, so you can review each currency on its own.
SALES AND STATISTICS IN ONE ROUTINE
- Start from dedicated Calculators, Sales, Statistics, and More tabs.
- Browse calculator categories or search for a tool.
- Use the calculator sidebar and detail area on iPad.
- Filter saved sales by status.
- Compare sales activity by month, quarter, or year.
- Browse saved calculations from Statistics.
- Review monthly activity and completed sale weights.
- Compare gemstone and calculator frequency.
- Explore revenue and pricing charts by currency.
- Read chart values in a list.
Sales Overview includes every sale status. Revenue and weight charts use completed sales, while pending sales, canceled sales, and drafts remain visible in record counts.
BACKUPS THAT KEEP RELATED DETAILS TOGETHER
- Export a JSON backup of customers, calculations, and sales.
- Include customer assignments, notes, and addresses.
- Preserve commission settings and payment activity.
- Keep saved gemstone previews with calculation records.
- Export CSV files for a spreadsheet.
- Import compatible files with Carats Pro.
- Add new records while preserving records already saved.
Choose JSON when restoring customers and their related sales together. File and record limits are shown in Import & Export before you proceed.
CARATS PRO AND EVERYDAY TOOLS
- Choose monthly access or a one-time lifetime purchase.
- Restore eligible purchases from the Carats Pro screen.
- Manage monthly subscriptions from the app.
- Keep viewing, sharing, and exporting existing records without Pro.
- Find calculator help, gemstone references, and appearance settings in More.
Saving or editing calculations, adding or editing sales, and importing records require Carats Pro. Monthly access renews automatically until canceled.
Ver 8.1 2026-05-09
This release is a full rebuild. The original Carats has been rewritten from scratch, and the result is faster, cleaner, and more capable than the version it replaces and while keeping the classic layout intact for anyone who doesn't want anything to change.
Here's what's different.
**MODERN GEM WEIGHT ESTIMATOR**
The new Gem Weight Estimator (Modern) is a redesigned version of the original estimation tool built for how people actually use the app. The classic estimator is still here and unchanged and the new one runs alongside it. Key differences in the modern layout:
- Live search field for the gemstone list and start typing "ruby" or "opal" and the list filters as you go, no more scrolling through 80+ entries to find what you need
- Facet style shown in a horizontal scrollable row instead of a dropdown menu
- Estimate, gemstone, and specific gravity always visible in the header card while you work
- Same formula, same database, different interface and pick whichever one you prefer
**FULL APP REDESIGN**
- New home screen organizes all calculators into labeled sections: Carats, Gauges, Area, Distance, Volume, and Reference
- Section icons and color accents make it easy to see at a glance what category you're in
- Cards use a layered glass-style background that works well in both dark and light mode
- Smooth gradient background throughout with subtle color glows keyed to each section's accent color
- Navigation is faster and tap a calculator, get a result, go back, move to the next one
**DARK MODE**
Dark mode support has been built in from the ground up. Every screen, every card, every input field responds correctly to the system appearance setting. The dark background is a deep near-black with the section accent colors providing contrast without being hard on the eyes.
**PERSISTENT INPUTS**
Every input field in the app now saves its value automatically using on-device storage. This was added because it's genuinely annoying to re-enter a measurement you had a minute ago. Close the app mid-calculation and it's still there when you reopen it. Reset buttons are available on every screen when you want to start fresh.
**GAUGE GUIDE**
The gauge reference chart has been redesigned as a proper scrollable reference table. Gauge 1 through gauge 38 with decimal inch and millimeter equivalents, formatted for quick scanning. It's the kind of thing that used to live as a printed card on the workbench and now it's always in your pocket.
**SHARE FROM ANYWHERE**
Every calculator in the app now has a Share button. Tap it and a formatted summary of the current inputs and results goes out via the standard iOS share sheet and text, email, AirDrop, Notes, whatever you need. The gem weight estimator share includes the stone name, specific gravity, facet factor, all three measurements, and the estimated carat weight in a clean readable format.
**RANDOMIZE**
The Randomize button generates believable sample values across all three dimensions and picks a random gemstone and facet combination. It's useful for demonstrating the estimator to a customer or student, or for sanity-checking a formula result against a known stone type.
**PERFORMANCE AND RELIABILITY**
- All calculators are built on a shared model layer with consistent formatting, rounding, and locale-aware number handling
- Number input parsing handles locale decimal separators correctly and comma vs. period depending on your region
- Output rows show a clean "Out of range" label if a calculation produces an invalid result rather than crashing or showing garbage
- Inputs are validated at the boundaries and negative values are clamped to zero, out-of-range gemstone or facet indices fall back safely
**WHAT HASN'T CHANGED**
The formula is the same. The gemstone database is the same. The classic layout is the same. If you were using the original app and it worked for you, it still works exactly the way it did. What is new is additive.
Here's what's different.
**MODERN GEM WEIGHT ESTIMATOR**
The new Gem Weight Estimator (Modern) is a redesigned version of the original estimation tool built for how people actually use the app. The classic estimator is still here and unchanged and the new one runs alongside it. Key differences in the modern layout:
- Live search field for the gemstone list and start typing "ruby" or "opal" and the list filters as you go, no more scrolling through 80+ entries to find what you need
- Facet style shown in a horizontal scrollable row instead of a dropdown menu
- Estimate, gemstone, and specific gravity always visible in the header card while you work
- Same formula, same database, different interface and pick whichever one you prefer
**FULL APP REDESIGN**
- New home screen organizes all calculators into labeled sections: Carats, Gauges, Area, Distance, Volume, and Reference
- Section icons and color accents make it easy to see at a glance what category you're in
- Cards use a layered glass-style background that works well in both dark and light mode
- Smooth gradient background throughout with subtle color glows keyed to each section's accent color
- Navigation is faster and tap a calculator, get a result, go back, move to the next one
**DARK MODE**
Dark mode support has been built in from the ground up. Every screen, every card, every input field responds correctly to the system appearance setting. The dark background is a deep near-black with the section accent colors providing contrast without being hard on the eyes.
**PERSISTENT INPUTS**
Every input field in the app now saves its value automatically using on-device storage. This was added because it's genuinely annoying to re-enter a measurement you had a minute ago. Close the app mid-calculation and it's still there when you reopen it. Reset buttons are available on every screen when you want to start fresh.
**GAUGE GUIDE**
The gauge reference chart has been redesigned as a proper scrollable reference table. Gauge 1 through gauge 38 with decimal inch and millimeter equivalents, formatted for quick scanning. It's the kind of thing that used to live as a printed card on the workbench and now it's always in your pocket.
**SHARE FROM ANYWHERE**
Every calculator in the app now has a Share button. Tap it and a formatted summary of the current inputs and results goes out via the standard iOS share sheet and text, email, AirDrop, Notes, whatever you need. The gem weight estimator share includes the stone name, specific gravity, facet factor, all three measurements, and the estimated carat weight in a clean readable format.
**RANDOMIZE**
The Randomize button generates believable sample values across all three dimensions and picks a random gemstone and facet combination. It's useful for demonstrating the estimator to a customer or student, or for sanity-checking a formula result against a known stone type.
**PERFORMANCE AND RELIABILITY**
- All calculators are built on a shared model layer with consistent formatting, rounding, and locale-aware number handling
- Number input parsing handles locale decimal separators correctly and comma vs. period depending on your region
- Output rows show a clean "Out of range" label if a calculation produces an invalid result rather than crashing or showing garbage
- Inputs are validated at the boundaries and negative values are clamped to zero, out-of-range gemstone or facet indices fall back safely
**WHAT HASN'T CHANGED**
The formula is the same. The gemstone database is the same. The classic layout is the same. If you were using the original app and it worked for you, it still works exactly the way it did. What is new is additive.
