249+ iOS apps & games curated and reviewed
The best diamond tester app on iPhone average 4.4★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.9★ (92) | No | Yes | Sep 2026 | |
| 2 |  | Free | 4.5★ (59) | No | Yes | Sep 2026 | |
| 3 |  | Free | 4.8★ (13) | No | Yes | Sep 2026 | |
| 4 |  | Free | — | No | Yes | Sep 2026 | |
| 5 |  | Free | 3.3★ (3) | No | Yes | Sep 2026 | |
| 6 |  | Free | 4.7★ (81K) | No | Yes | Sep 2026 | |
| 7 |  | Free | 5.0★ (1) | No | Yes | Aug 2026 | |
| 8 |  | Free | — | No | Yes | Sep 2026 |
Utilize AI and your phone's camera to instantly estimate diamond authenticity and grade. Identify different diamond types and gemstones, providing detailed information for professionals and consumers alike. Gain confidence in diamond purchases with quick, reliable analysis.
Identify real diamonds, gems, and crystals with a photo. Get information on authenticity and estimated value. Organize your findings in a personal collection.
This app uses your device's camera to scan and analyze diamonds, providing detailed reports on authenticity, quality, and comparisons to lookalike stones. It helps buyers, collectors, and resellers evaluate gemstones with visual evidence and confidence scores.
