248+ iOS apps & games curated and reviewed
The best diamond tester app on iPhone average 4.5★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (118) | No | Yes | Oct 2026 | |
| 2 |  | Free | 4.6★ (7) | No | Yes | Oct 2026 | |
| 3 |  | Free | 4.5★ (65) | No | Yes | Oct 2026 | |
| 4 |  | Free | 4.8★ (13) | No | Yes | Oct 2026 | |
| 5 |  | Free | 3.8★ (4) | No | Yes | Oct 2026 | |
| 6 |  | Free | 4.7★ (82K) | No | Yes | Nov 2026 | |
| 7 |  | Free | 5.0★ (1) | No | Yes | Sep 2026 | |
| 8 |  | Free | 3.9★ (17) | No | Yes | Oct 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.
Analyze diamonds and gemstones instantly with AI-powered image recognition. Get detailed insights into characteristics, quality, and estimated market position. Ideal for enthusiasts, collectors, and buyers seeking quick, informative assessments.
Identify real diamonds, gems, and crystals with a photo. Get information on authenticity and estimated value. Organize your findings in a personal collection.
