# Diam Calc Pro — Diamonds Weight Calculator Pro > Diamonds Weight Calculator Pro (iPhone/iPad app by The Perfect Creative Studio.) - Source: https://appshunter.io/ios/app/diam-calc-pro/id1141717792 (this page in markdown: same URL + `.md`) - Developer: [The Perfect Creative Studio](https://appshunter.io/developer/1141205378) - Category: Business, Productivity - Price: $3.99 - Age rating: 4+ - Requires: iOS 17.6 · 9 MB - Languages: American English - Released: 2016-09-29 - Data updated: 2026-09-01 - User reviews in markdown: https://appshunter.io/ios/app/diam-calc-pro/id1141717792/reviews.md ## What is Diam Calc Pro? Diam Calc Pro is the professional diamond weight estimator trusted by jewelers, gemologists, and diamond enthusiasts worldwide. Instantly calculate the estimated carat weight of any diamond using industry-standard formulas. Simply enter the measurements and get accurate results in seconds — no internet required. 11 DIAMOND SHAPES SUPPORTED • Round Brilliant • Oval • Pear • Heart • Marquise • Princess • Cushion • Emerald (Step Cut) • Radiant • Trilliant • Asscher (Step Cut) HOW IT WORKS Enter the diamond's length, width (for fancy shapes), and height — either as a percentage of diameter or in millimeters. The app returns: • Average diameter (mm) • Height percentage (%) • Height in millimeters (mm) • Estimated weight in carats (ct) DESIGNED FOR PROFESSIONALS Diam Calc Pro is built for speed and accuracy. Whether you're at a trade show, a jewelry bench, or a buying desk, you'll have precise weight estimates at your fingertips. WHAT'S NEW IN VERSION 3.1.0 Complete redesign built for iOS 26 with Apple's Liquid Glass material system. Real diamond photography, per-shape accent colors, dark & light mode support, animated splash screen, and a fully native SwiftUI interface. PRIVACY: No account required. No data collected. No ads. Your calculations stay on your device. Diam Calc Pro is a paid, ad-free app - a one-time purchase for professionals who demand the best tools. Thanks for using Diam Calc Pro! ## Version history (last 5 releases) ### 3.1.0 — 2026-08-17 Version 3.1.0 — Complete Redesign • All-new interface built natively for iOS 26 with Apple's Liquid Glass material system • Real diamond photography for all 11 shapes • Per-shape vibrant accent colors for instant shape recognition • Full dark mode and light mode support with one-tap toggle • Height input now accepts both percentage (%) and millimeters (mm) • Animated splash screen with wireframe diamond illustration • Faster, more accurate weight calculations using updated industry formulas • Supports all screen sizes and Dynamic Type ### 2.1 — 2019-07-27 * Minor Bug Fixed ### 2.0.1 — 2019-07-25 * Minor Bug Fixed * New Launch Screen and Info Screen Update ### 2.0 — 2019-04-30 * Redesigned * Support iOS 12 * Support for iPhone X, iPhone XS, iPhone XR * Full Pro Version ### 1.3.1 — 2016-10-07 * Minor Bug Fixed * New PRO Icon * New Shapes and Ratio wise calculations coming in future versions Thanks for using Diam Calc! To make our app better for you, we bring updates to the App Store regularly. Get the latest version for all of the available features and improvements of the App. Like us on Facebook @Diamondscalc to stay updated. ## More apps by The Perfect Creative Studio - [Diam Calc Lite](https://appshunter.io/ios/app/diam-calc-lite/id1141205379) - [Rough Diamond Price Estimator](https://appshunter.io/ios/app/rough-diamond-price-estimator/id1191100956) - [Rough Diamond Plan Estimator](https://appshunter.io/ios/app/rough-diamond-plan-estimator/id1217110555) - [Tech Guru Web](https://appshunter.io/ios/app/tech-guru-web/id1458149196) - [Events Pro - Discover Events](https://appshunter.io/ios/app/events-pro-discover-events/id1460649588) All apps by The Perfect Creative Studio: https://appshunter.io/developer/1141205378 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*