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Stuller Diamonds®

Rely on Stuller to provide the ultimate in diamond confidence, quality, and selection.

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GCAL 8X Logo

Ultimate Cut Grade

  • Lab-grown diamonds achieve excellent grades in all eight aspects of cut quality.

  • An interactive GCAL Grading Certificate that includes videos and more. See example here.

Deals in Diamonds

Earn Rebate Rewards as You Shop

Qualified accounts can earn rebate rewards every year by purchasing natural diamonds with reports. Each purchase gets you closer to a higher tier of rewards that you can receive yearly through ACH deposit or account credit.
Diamond Rebate Gif

Our Screening Process

When you order diamonds from Stuller, you can have complete confidence in your purchase. We remain at the forefront of diamond screening with robust practices that use the most advanced technology available.
  • 2 automatic melee screeners

  • 25 fluorescence imaging screeners for loose and mounted diamonds

  • 3 mega-sized imaging screeners

  • 8 fluorescence spectroscopy screeners

  • 9 UV-transparency screeners

About Natural Diamonds

About Natural Diamonds

The highest trust and confidence possible in a diamond purchase

About Lab-Grown Diamonds

Optically, chemically, and physically identical to natural diamonds.

About CanadaMark

About CanadaMark®

CanadaMark diamonds are tracked through audited processes from origin to polished stones.

The 4Cs of Diamonds

The 4Cs of Diamonds

To determine a diamond's value, experts use the Four Cs—cut, color, clarity, and carat weight. 

Talk to an Expert

Contact an expert from our diamond team for answers to any of your questions.

Diamond Repair

Trust the experience of Stuller’s Diamond Cutting Masters for your diamond repair needs.

Clean Scrap

Send your unwanted inventory to us for quick payment in Stuller account credit or cash.

Stuller Blog

Stuller Blog

The Stuller Blog is your source for selling tips, trend alerts, and more.

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Mountings Catalog

Catalogs & Brochures

These publications give you and your customers easy access to our full range of products and services.

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Marketing Images

Marketing Images

Promote your business with our beautiful high resolution images — free to all Stuller First® customers.

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