# GemID: Gemstone Identification — exam study. Identify & catalog > Gemstone identification app using gemological properties and instrument testing. (iPhone/iPad app by GemID Labs.) - Source: https://appshunter.io/ios/app/gemid-gemstone-identification/id6760046131 (this page in markdown: same URL + `.md`) - Developer: [GemID Labs](https://appshunter.io/developer/1882493086) - Category: Utilities, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 76 MB - Languages: American English - Released: 2026-03-16 - Data updated: 2026-08-26 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/gemid-gemstone-identification/id6760046131/reviews.md ## What is GemID? GemID is a complete toolkit for gemstone identification and gemology study. Enter your instrument readings and it narrows the candidates; catalog your stones; generate examination reports; and prepare for your diploma exams — one app across your whole path, from first flashcard to first client report. GemID is an educational reference tool for gemological observation. It is not a substitute for professional laboratory testing or a certified gemologist's opinion. IDENTIFY STONES FROM YOUR OBSERVATIONS GemID comes to the workbench with you. Enter your refractometer, hydrostatic scale, UV lamp, polariscope, and loupe readings, and the app cross-references them against 130 gem species and varieties — returning only the candidates genuinely consistent with your data, with the full elimination path shown. Read RI 1.544 and SG 2.65? GemID shows that's consistent with quartz, and the one test that narrows it further. The logic is transparent; the reasoning stays yours. NATURAL VS SYNTHETIC & TREATMENT TESTING A two-phase origin workflow: enter inclusions, growth structures, fluorescence, and spectroscopy observations, and GemID walks the differential for natural vs. synthetic and heated vs. unheated. Treatment coverage includes heat, diffusion, glass-filling, fracture-filling, and coating. TRACK YOUR COLLECTION Save each identification with its readings and elimination trail. Build a catalog of your stones you can search and revisit. EXAMINATION REPORTS Turn a saved identification into a clean, shareable examination report with your observations, the candidate reasoning, and your notes — for your records or your clients. A MAINTAINED REFERENCE DATABASE 130 gem species and varieties across every major family — corundum, beryl, chrysoberyl, garnet species, tourmaline, quartz, feldspar, opal, jadeite, nephrite, spinel, topaz, peridot, zircon, tanzanite, and more — with refractive index, specific gravity, optic character, pleochroism, fluorescence, and the diagnostics that separate look-alikes. Where the exam bodies publish different reference values, GemID shows both, tagged to the exam that grades you. PRACTICE EXAMS FOR GEMOLOGY STUDENTS Preparing for a diploma? GemID includes practice exams built around the real formats — the GIA 20-stone, the Gem-A FGA Section D, and the FEEG European Gemmologist. Identify unknown stones under exam conditions, and a readiness score tracks how prepared you are across the property categories examiners test. DRILL WITH SPACED REPETITION Build property recall between sessions. 21 question types across refractive index, specific gravity, optic character, pleochroism, fluorescence, natural vs. synthetic indicators, treatment detection, and key differentiators. Filter by family, color, instrument, or confusion pairs. Spaced-repetition scheduling surfaces the cards you're weakest on. 15 LANGUAGES Fully localized — interface, gem names, and property descriptions. 7-DAY PRO TRIAL — NO CARD REQUIRED Every account starts with a full 7-day Pro trial. After it, continue free with daily drills, full instrument input, and candidate results — or subscribe for unlimited drills, named candidates, examination reports, and exam simulators. WHO USES GEMID • Collectors and enthusiasts identifying and cataloging their stones • Gemology students preparing for GIA, Gem-A, and FEEG exams • Working gemologists and appraisers at the bench GemID is an independent tool. It is not affiliated with, endorsed by, or sponsored by GIA, Gem-A, or FEEG. Always verify important identifications with an accredited gemological laboratory. ## Key features - Systematic gemstone identification - Optical and physical property analysis - Instrument test guidance - Origin & treatment testing (Pro) - Collection management - Database of 119 gems ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Hobbyist Annual | $49.99 | per year | | Pro Monthly | $19.99 | per month | | Pro Annual | $149.99 | per year | | Hobbyist Monthly | $6.99 | per month | | GemID Team Pro (Monthly) | $49.99 | per month | | GemID Team Pro (Annual) | $399.99 | per year | ## Frequently asked questions about GemID ### What gemstones can GemID identify? GemID has a database of 119 gems, including common stones like quartz and topaz, as well as rarer collector gems such as alexandrite, tanzanite, and demantoid garnet. ### Does GemID offer guidance for using gemological instruments? Yes, GemID provides step-by-step guidance for using instruments like refractometers, polariscopes, spectroscopes, UV lamps, and for specific gravity testing. ### Can GemID help identify if a stone is natural or lab-grown? The Pro version of GemID includes a two-phase testing workflow designed to help identify natural versus lab-grown stones and detect common treatments. ### What are the subscription options for GemID? GemID offers several subscription plans, including Hobbyist Monthly ($6.99), Pro Monthly ($19.99), GemID Team Pro (Monthly) ($49.99), Hobbyist Annual ($49.99), and Pro Annual ($149.99). ### Does GemID have ads? No, GemID does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features and subscriptions. ### What devices is GemID compatible with? GemID is supported on iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users. ### How often is GemID updated? The latest version of GemID is 1.10.2, and it was last updated on May 4, 2026. This indicates a recent update, suggesting ongoing development and support. ### Can I export my gemstone identification records? Yes, GemID allows you to save identified stones to profiles, track acquisition details, and export professional examination records for your collection. ## Version history (last 5 releases) ### 2.2.8 — 2026-08-24 What's New in This Version (for 2.2.8) This release is a big step up: • Opens in your device's language automatically — 15 languages, fully localized • Practice exams now work reliably start to finish, with correct scoring • Cleaner identification reports and results • Faster onboarding — tell us what you're here for and start there Plus stability and quality fixes throughout. • Other bug fixes ### 2.2.7 — 2026-08-21 This release is a big step up: • Opens in your device's language automatically — 15 languages, fully localized • Practice exams now work reliably start to finish, with correct scoring • Cleaner identification reports and results • Faster onboarding — tell us what you're here for and start there Plus stability and quality fixes throughout. ### 2.1.3 — 2026-08-19 GemID 2.1 puts exam prep front and center. • Practice exam improvements: results stay on screen until you're ready for the next stone, and species/variety suggestions are now distinct • Your exam scores and study streak now sync across devices when you're signed in • Recent and best scores shown at the top of the exam launcher • Keyboard now dismisses when you tap outside a field or scroll • Smaller navigation bar and layout fixes • Bug fixes and stability improvements • New first-run setup — jump straight into exam practice or gem identification, your choice • Start your free trial directly from the exam simulator • Drill sessions now open straight onto the first card • Drill filtering by instrument: refractometer, polariscope, dichroscope, SG kit, UV lamp • Bug fixes and polish ### 1.10.2 — 2026-05-04 New Features - Quick ID mode — observable-only identification for beginners (no instruments required) - "What Test Next?" drill question type — trains users on test sequencing - Confusion pair drill mode — focus practice on commonly confused gems (130 gems enriched with confusedWith pairs) - Gem-A FGA Section D exam simulator — partial credit scoring, constants sheet, strike system - FEEG 12-stone European Gemmologist exam simulator - Half-exam options for Gem-A (6 stones, 1h35m) and FEEG (6 stones, 2h15m) - Exam readiness score — tracks preparedness before attempting mock exams - Guided onboarding walkthrough — interactive Ruby identification that teaches the workflow step-by-step - Exam study guide pages — static web pages for GIA, Gem-A, and FEEG prep ### 1.9.0 — 2026-05-04 What's New in 1.9.0: - GIA 20-Stone Exam Simulator — Practice the GIA colored stone identification exam with timed sessions, instrument reveals, and scoring - Exam Achievements — Earn badges for exam milestones (streaks, speed, accuracy) - Exam Analytics — Track your performance trends over time - SRS Integration — Missed exam stones automatically feed into your flashcard study queue - Mobile redirect — Smoother navigation for mobile exam sessions ## Apps similar to GemID | App | Rating | Price | Category | | --- | --- | --- | --- | | [YESPER](https://appshunter.io/ios/app/yesper/id6462661432) | — | Free | Utilities | | [X Stitch Floss Finder](https://appshunter.io/ios/app/x-stitch-floss-finder/id6744546311) | — | Free | Utilities | | [ComMarker_Studio](https://appshunter.io/ios/app/commarker-studio/id6757487489) | 4.0 (1) | Free | Utilities | | [GemBrain: Crystal Identifier](https://appshunter.io/ios/app/gembrain-crystal-identifier/id6754960446) | 3.9 (14) | Free | Utilities | | [Humanize AI: AI Text Humanizer](https://appshunter.io/ios/app/humanize-ai-ai-text-humanizer/id6755791093) | — | Free | Utilities | | [NB-42 Barometer](https://appshunter.io/ios/app/nb-42-barometer/id6503903082) | — | Free | Utilities | --- *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 2026-08-26.*