Diamond Tester: CrystalScan
Gemstone identifier
About
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.
What's New in Diamond Tester
1.0.7
June 16, 2026
• Bug fixes and performance improvements.
Subscription plans
PRO Weekly
PRO Weekly
In-App Purchases
$34.99
One-time Payment
Lifetime Access
Developer apps
FAQ
Does Diamond Tester have ads?
No, Diamond Tester is ad-free, especially when you upgrade to the Pro version. The Pro subscription offers a 100% ad-free experience.
What is the pricing for Diamond Tester?
The app is free to download. A PRO Weekly subscription is available for $4.99 per 7 days, which includes a 3-day free trial.
How accurate is Diamond Tester's grading?
The app uses advanced artificial intelligence to analyze stone structure, light performance, and quality based on strict industry standards, providing professional-grade reports.
Can I use Diamond Tester offline?
The provided data does not specify offline functionality. However, AI analysis and report generation may require an internet connection.
What devices does Diamond Tester support?
Diamond Tester is currently supported on iPhone devices. Information regarding Android or other platforms is not available in the provided data.
How often is Diamond Tester updated?
The latest version was updated on June 16, 2026. Update frequency can vary, but this indicates recent development activity.
What are the benefits of Diamond Tester Pro?
Diamond Tester Pro unlocks unlimited stone scans and appraisals, unlimited custom PDF report generation, 24/7 access to the AI gemologist chatbot, and a completely ad-free experience.
How do I cancel my Diamond Tester subscription?
Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscription through your iTunes Account settings.