GemstoneAI

GemstoneAI (Vik Westermann) · Official site

A consumer phone app for probable gem identification and value estimates. Useful curiosity; not a certificate.

A starting point, including the founder’s own wording. Not a GIA, AGS or equivalent report.

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Jobs

Gem grading and identification

Input

Phone photos of a gem or a finished piece, with in-app coaching for angle and light.

Output

A probable stone type (200-plus varieties are claimed), hallmark/karat reading on jewellery, a confidence score, alternatives for look-alikes, and a market-value estimate from live comparables. The company states it cannot determine origin or natural versus lab-grown, and that a phone camera cannot replace a lab or a formal appraisal.

Published price

Free to download and try; a paid subscription unlocks unlimited scans and deeper features, per National Jeweler’s 20 August 2026 report. Confirm current prices in the app stores.

Last checked 11 November 2026 · Source

Exports

An identification and value estimate in the app, with a collection portfolio. Not a laboratory report.

Last checked 11 November 2026 · Source

Last checked

11 November 2026 · Source