This app provides professional tools for calculating gemstone weight, pricing, and setting costs. It helps jewelers, traders, and enthusiasts make informed decisions with features like currency conversion and duty estimation.





249+ iOS apps curated and reviewed
Out of 249+ carat calculator apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | May 2026 | ||
| 2 | Free | 5.0★ (1) | No | No | Aug 2026 | ||
| 3 | Free | 4.9★ (409K) | Yes | No | Oct 2026 | ||
| 4 | Free | — | No | No | Jun 2026 | ||
| 5 | Free | 4.7★ (61K) | No | No | Oct 2026 | ||
| 6 | Free | 3.0★ (1) | No | No | May 2026 | ||
| 7 | Free | — | No | No | Sep 2026 | ||
| 8 | Free | — | No | No | Sep 2026 |









This app provides professional tools for calculating gemstone weight, pricing, and setting costs. It helps jewelers, traders, and enthusiasts make informed decisions with features like currency conversion and duty estimation.


This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.