
Loupewise: Gem Identification
Exam study. Identify & catalog
About
Identify gemstones using optical and physical properties like a professional. Features detailed guidance for instrument testing and collection management. Includes a database of 119 gems, from common to rare.
What's New in Loupewise
2.3.18
October 6, 2026
GemID is now Loupewise — same app, same account, same data. New name. • Identification engine: an exact refractive-index match now outranks a reading that only survives on tolerance; specific gravity and pleochroism re-rank candidates at the margin instead of eliminating them; an inclusion or cleavage term the app does not recognise no longer empties your list • Exam simulator: each simulated instrument now returns only readings that instrument can physically take; correct readings on a documented range edge are graded correct; the answer key explains wrong picks accurately • Drills: two new question types (dispersion, inclusion recall); a gem's own answer is never offered back as a distractor; practice answers no longer disturb your spaced-repetition schedule • Walkthrough and onboarding fully translated in all 15 languages, with a language control you can reach from the first screen • Saving an identification now tells you when a collection is required • Study tab shows the real drill pool on a cold start • Fixes to candidate names, hints, and spectrum data for several stones
MoreSubscriptions & In-App Purchases
Hobbyist Annual
Hobbyist Annual Package
FAQ
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.







