Is Your Diamond
Real or Fake?
Find out instantly with AI. Snap a photo and get diamond authentication, 4Cs grading, and estimated market value — all in seconds.
AI-Powered Diamond Analysis
A visual reference report from a single photo: characteristics, 4Cs and an estimated value range
Real or Fake
Instant visual read, with how confident the match is
4Cs Grading
Cut, clarity, color, and carat estimation in seconds
Value Estimate
Get an estimated market value range for your diamond
Red Flags
Identifies counterfeit indicators and warning signs
How Diamond Tester Works
1. Snap a Photo
Take a photo of your diamond or upload one from your gallery
2. AI Analyzes
The app reads the visible characteristics of your stone: cut, clarity, colour and carat
3. Get Your Report
You get a reference report with the 4Cs, an estimated value range, and what to check next
Learn About Diamonds
Built-in educational guides to help you become a diamond expert
How to Spot a Fake Diamond
Learn the fog test, water test, heat test, and more professional techniques
Understanding the 4 C's
Master cut, clarity, color, and carat — the universal diamond grading system
Diamond Care Guide
Keep your diamonds sparkling with proper cleaning, storage, and maintenance tips
Diamond Guides
Free tools and plain-English guides. No account, no email.
Test Your Diamond for Free
Download free and scan your first stone. No account needed.