Ideal Cut Red Box Diamonds. A superior diamond paired with a superior selling system!

Diamond Search Search through Stuller's extensive selection of Melee (non-certified) and Red Box Diamonds™ (certified).

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Round Emerald Princess Radiant Oval Heart Pear Triangle
Marquise Asscher Briolette Straight Baguette Tapered Baguette Cushion Half Moon Trapezoid

Search ALL Diamonds (Melee and Large)

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Red Box Diamonds

Red Box Diamonds®. Trust. Confidence. Security
Learn more about the benefits of this selling system.

Red Box Diamond® Information
See how the Red Box Moments® program can benefit you.

Red Box Diamond Moments®
Learn how to enhance diamond marketing.

Diamond Cutting & Repair
We offer full recuts, reshaping, and repair service.

FAQ

Can’t find the stone you're looking for? Let us help!

For expert help on Diamond and Gemstone buying or for special requests, please call one of our friendly specialists at 1-800-877-7777. For diamond help, ask for ext. 540. For gemstone help, ask for ext. 546.

Q: Can I memo serialized diamonds or gemstones online?
A: Yes. After adding a serialized Red Box Diamond or Black Box Gemstone to your Shopping Cart, you will see a "Memo this item?" box in the cart. Place a checkmark in that box to request the item on memo. Memos are available to well qualified accounts and are subject to credit approval.

Q: What do the AGTA Codes mean?
A: An AGTA Code indicates whether or not a diamond or gemstone has been enhanced. We have compiled a list of possible AGTA codes and their meanings.