Trusted by jewellers worldwide. Pricing, weights, ring sizing and halo calculations - everything on your bench, in your pocket.
Carit is the essential calculator app for bench jewelers. Built by a working jeweler who got tired of spreadsheets, scrap paper, and guesswork.
FREE FEATURES:
- Ring size chart with international size systems
- Live gold, silver, platinum and palladium spot prices
- Stone size charts - round + 10 fancy shapes
- Ring blank length - strip length for any ring size and gauge
- Unit converter - weight and length, including fractions
- Gemstones reference
- 30 languages, multi-currency support
PRO FEATURES (7-day free trial):
- Metal value calculator - melt value at live spot, all karats
- Casting weight - CAD/wax volume to metal weight, live pricing
- Wire, sheet and tube weight calculator, live pricing
- Investment mixing and burnout - flask volume and casting plan
- Models Library - save your molds and CAD models, priced in any alloy
- Reference library - gauges, alloys, saw blades, files, abrasives, solders
- Ring weight, live pricing
- Sizing calculator, live pricing
- Stone weight estimation from dimensions
- Pave TCW counter
- Eternity calculator
- Halo calculator - stone count, spacing and fit around any center stone
- Parallel heel - V graver heel and rotation for dual-angle fixture
- STL Viewer with ring size identification and live metal pricing
- Polygon ring layout calculator
- Alloy mixing - build or convert any gold/silver alloy
- Scrap buying calculator - what to pay for scrap metal
- Full quote builder with import and export (XLSX) and local saving
Whether you're sizing a ring, quoting a commission, or mixing an alloy at the bench - Carit gives you the answer in seconds.
NO ACCOUNT NEEDED
Carit works without an email, login, or signup. Your data stays on your device.
WHO IT'S FOR
- Bench jewelers and goldsmiths
- Silversmiths and metalsmiths
- Custom and bespoke makers
- Repair and restoration workshops
- Jewelry students and apprentices
- Independent designers and small studios
Built by a working jeweler. For jewelers.
Questions or feedback? Email hello@getcarit.com or visit getcarit.com.
Terms of Use: https://getcarit.com/terms.html
Privacy Policy: https://getcarit.com/privacy.html
I have been a goldsmith and stone setter of all types including micro pave and colored stone setting for 20 years and I have always battled with multiple tabs open, searching for conversions and thanks to my fellow Jeweler, “Ian”, now I can have it in one place and save time! Very satisfied! Thanks Ian!
Awesome App!!
Brian~K.
This is such an awesome app with great tools for goldsmiths! I really love the eternity band builder tool, but there’s so many more that I will be using! The app is loaded with essential everyday calculations and references for jewelers!! Thank you Ian for building this!
All your charts in one place
Bench jeweler
That’s the goal and it’s a strong start. Convert easily between Imperial, metric and troy weights, various ring sizing systems, pi, and stone weights. That’s just the first page.Only thing keeping this from 5 stars is the pro version isn’t a one time purchase. Yet 🤞
Awesome calculator
Trixie Coyote
The perfect tool to save time and ensure accuracy. Provides cost, accurate sizing and is easy to use
What's New in Version 1.2.3
Halo Calculator - plan stone counts and carat weight for any halo setting, with support for round and fancy-cut centre stones
Parallel Heel Calculator - calculate V-graver heel and rotation angles for the GRS dual-angle fixture, with saveable presets and step-by-step grind guidance
Gem Map Import - in the TCW Counter, import stone counts directly from a MatrixGold gem map image using on-device OCR; review and edit before confirming
Solder Mix - new "From an alloy I have" mode for building a solder mix starting from an existing alloy
Alloy Mixing - reworked Convert mode for faster metal conversion calculations
Vietnamese - Carit is now available in Vietnamese
Version 1.2.3
The developer, Atelier Barnard SL, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
