Diamond Tester & Gem Scanner
Spot fakes & check the 4Cs
About
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.
What's New in Diamond Tester & Gem Scanner
1.1
May 15, 2026
We fixed bugs and improved performance to make the app faster, smoother, and more reliable. Enjoy fewer interruptions, more responsive screens, and a better overall experience.
MoreSubscription plans
Yearly Tier
Premium access for one year
Developer apps
FAQ
Does Diamond Tester have ads?
No, Diamond Tester does not contain advertisements. It offers premium features through in-app purchases.
What are the subscription options for Diamond Tester?
Diamond Tester offers a weekly subscription for $6.99 USD with a 3-day free trial, and a yearly subscription for $29.99 USD. Premium access is required for diamond identification.
How accurate is Diamond Tester?
Diamond Tester provides estimates based on visual analysis and should be used as a supplementary tool. For certified grading or legal transactions, always consult a professional gemologist or certified lab.
What devices does Diamond Tester support?
Diamond Tester is available for iPhone and iPad devices.
What is the age rating for Diamond Tester?
Diamond Tester has an age rating of 4+, making it suitable for a wide range of users.
How often is Diamond Tester updated?
The latest version of Diamond Tester is 1.1, and it was last updated on May 15, 2026. Updates typically include new features and performance improvements.
Can I cancel my Diamond Tester subscription?
Yes, users can cancel their Diamond Tester subscription at any time. The subscription plans detail the terms for cancellation and renewal.
What does Diamond Tester analyze besides authenticity?
Diamond Tester analyzes the 4Cs of a diamond: Cut, Color, Clarity, and Carat weight. It also provides instant market value estimations based on these attributes.