Identify real diamonds, gems, and crystals with a photo. Get information on authenticity and estimated value. Organize your findings in a personal collection.




231+ iOS apps & games curated and reviewed
The best diamond tester app on iPhone average 4.5★ across 231+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.5★ (43) | No | Yes | Jul 2026 | |
| 2 | Free | 4.9★ (92) | No | Yes | Jul 2026 | |
| 3 | Free | 3.3★ (9.3K) | Yes | No | Jul 2026 | |
| 4 | Free | 3.7★ (3) | No | Yes | Jul 2026 | |
| 5 | Free | 5.0★ (2) | No | Yes | Jul 2026 | |
| 6 | Free | 4.0★ (1) | No | Yes | Jun 2026 | |
| 7 | Free | 4.8★ (5) | No | Yes | Jul 2026 | |
| 8 | Free | 4.6★ (29) | No | Yes | Jul 2026 |




Identify real diamonds, gems, and crystals with a photo. Get information on authenticity and estimated value. Organize your findings in a personal collection.




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.



This entertainment app simulates a lie detector using a fingerprint scan. It randomly determines if the user is telling the truth or lying, providing humorous results for amusement.


Instantly identify and test diamonds and gemstones using your phone's camera. This app analyzes stones to estimate authenticity and provides details on Cut, Color, Clarity, and Carat. Organize your collection and track your scanning history.


Instantly analyze diamonds and gemstones using your iPhone to detect fakes and estimate their value. Get insights into cut, color, clarity, and carat weight, and build a digital collection of your gems.


Quickly assess if a stone might be a real diamond using your device's sensors. Get instant feedback without needing tools or experience, ideal for buyers, sellers, or the simply curious.


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.


Instantly analyze gemstones using your phone's camera. Get AI-powered insights on diamond authenticity, lab-grown indicators, and quality characteristics. Generate shareable PDF reports for your records or transactions.




Instantly identify rocks, minerals, and gemstones by taking a photo. Access a comprehensive encyclopedia with detailed information on each stone, learn to distinguish real from fake gems, and explore their properties. The app also includes a metal detector and expert consultation.


This app helps shoppers and sellers understand diamond quality using interactive tools and educational content. It allows users to save and share diamond reports, find local retailers, and even match diamonds to their reports.


This app helps diamond dealers quickly identify and verify diamonds. It allows registration of diamonds and subsequent scanning to confirm authenticity. It can also check the condition of prongs on mounted diamonds.


Lead a crowd of stickman warriors through a city, collecting more to build your army. Navigate obstacles, choose the best gates, and battle opponents to reach the end and defeat the final boss. Upgrade your levels and collect coins in this thrilling 3D running game.


Instantly identify rocks, minerals, and gems by snapping a photo. Explore detailed profiles, manage your personal collections, and keep a log of all your discoveries. Become a geology expert with this comprehensive guide.


Identify rocks, minerals, and crystals from photos with high accuracy. Explore their properties, discover nearby deposits on a map, and build your own digital collection. Learn fascinating facts about stones from around the world.


Instantly identify rocks, stones, gems, and crystals by taking a photo or uploading an image. Get accurate results in seconds with a rich database and user-friendly interface. Perfect for both geologists and enthusiasts.


This app uses AI and your device's camera to authenticate and grade diamonds and gemstones. It provides instant analysis, detailed 4C grading, and generates professional PDF appraisal reports. You can also chat with an AI gemologist and save your collection.




Discover premium diamond painting kits designed for an exceptional crafting experience. Each kit includes all necessary high-quality materials, from durable canvases to vibrant resin rhinestones, along with easy-to-follow instructions for creating your own masterpiece.


Experience the calming art of diamond painting digitally. This app offers a realistic and creative coloring experience with interactive diamond placement and a vast library of artwork. Unlock more content through gameplay or a subscription for exclusive bonuses and ad-free enjoyment.