Need help finding the perfect diamond?
Begin search
StoneAlgoStoneAlgo Logo StoneAlgo
Illustrated diamond logo

Compare Top-Rated Jewelers & Save

Navigate the diamond market effortlessly.

Check your diamond
StoneAlgo's Price Tracking
2M+

Diamond Inventory

1M+

Happy Shoppers

4.9★

Trust Pilot

10+

Jewelers

750M+

Historical Prices

5M+

Free Diamond Checks

Search diamonds by shape

Search for diamonds with Round shape

Round

Search for diamonds with Cushion shape

Cushion

Search for diamonds with Oval shape

Oval

Search for diamonds with Princess shape

Princess

Search for diamonds with Emerald shape

Emerald

Search for diamonds with Pear shape

Pear

Search for diamonds with Radiant shape

Radiant

Search for diamonds with Asscher shape

Asscher

Search for diamonds with Marquise shape

Marquise

Search for diamonds with Heart shape

Heart

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.

Check Prices

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

Check Prices

Our Retailers

Retailer? Join here
Adiamor logo
B2C Jewels logo
Brilliance logo
DreamStone logo
RockHer logo
Friendly Diamonds logo
Whiteflash logo
With Clarity logo

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
Example of a diamond on hand on the day of engagement
Example of a diamond on hand on vacation near water
Example of a diamond on hand on vacation in Europe
Example of a diamond on hand on vacation in cold weather

See how over 1 million diamond shoppers saved money on StoneAlgo

Get started

StoneAlgo Logo

The world's largest diamond marketplace.

Facebook Instagram Twitter

Prices

Company

© 2023 StoneAlgo, Inc. All rights reserved.