Free Ruby Identifier
Identify rubies instantly with our free online ruby identifier. Powered by AI — completely free, no sign-up required.
About This Tool
Ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum. Our AI can identify rough ruby crystals, cut stones, and help distinguish them from similar red gems like spinel or garnet.
📸 Tips for Best Results
- ✓Capture the exact shade of red in daylight
- ✓Look for six-sided crystal shapes in rough specimens
- ✓Note any fluorescence under UV light (rubies often glow red)
- ✓Show facets clearly on cut stones
🧠 Interesting Facts
- •The red color of ruby is caused primarily by the presence of chromium
- •All other color varieties of corundum are called sapphires
- •Rubies have a hardness of 9.0 on the Mohs scale, second only to diamond
- •The most valuable rubies have a 'pigeon blood' red color
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