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Build your dream ring with top-rated jewelers Build your dream ring with top-rated jewelers

Design your dream ring with AI and search diamonds from top-rated local and online jewelers

Design your dream ring with AI and search diamonds from top-rated local and online jewelers

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StoneAlgo's Price Tracking

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How StoneAlgo helps you buy better

Smart Search

StoneAlgo’s Smart Search will help you find the perfect diamond from over 2M stones.

Find Great Deals

We help you find underpriced, high quality stones. Our fair price estimate saves you time and money.

Compare Stones

Save diamonds to your Vault to compare stones side-by-side and manage price alerts.

Check For Red Flags

Sometimes what looks like a great deal on paper is just too good to be true.

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Track diamond prices with our historical price charts & proprietary diamond price indexes.

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Highly Recommend StoneAlgo

I am VERY grateful to StoneAlgo for saving me from a would-be terrible purchase. Highly recommend!

— Alex B

StoneAlgo is a Tremendous Resource

The cut score was a terrific way to hone in on the best candidates when faced with the overwhelming number of options available online.

— Igor G

The Most Beautiful Diamond I’ve Ever Seen!

By using the StoneAlgo calculator, I was able to find the best cut diamond at the best price. My diamond is breathtaking.

— Kim V

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