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Submit A Gemstone Request

Source a specific gemstone with help from the experts. Fill out the form below and one of our graduate gemologists will help you find the perfect gemstone!

Not yet Gemstone and Diamond Qualified? Sign up for a Wholesale Account! Click Here

A Trusted Source for Loose Gemstones, Cabochons & Cameos

AGTA logo


Learn about the symbols set by the American Gem Trade Association (AGTA) that are used to disclose any enhancements applied to gemstones. Use these symbols when you buy, display and sell stone-set jewelry.

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A Brilliant Year

Review this quick reference chart with faceted and cabochon birthstone options for every month, along with their associated meanings.

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A row of colorful, faceted birthstones

A gemstones team member looking at stones

Dedicated, Resourceful & Knowledgeable

We stand behind every diamond, gemstone, lab-grown diamond and moissanite we sell. Our expert team of in-house graduate gemologists inspects each gemstone before it leaves our facility. This dedication to quality assurance and sourcing extends beyond our own collection. The partnerships we have created with miners, suppliers, jewelers and manufacturers provide unparalleled resources and additional reserves for us to source, inspect and recommend.

Rio Grande Gemstone Specialist

Shannon Demoulin G.G., A.J.P.

When she joined Rio Grande in 1990, Shannon worked alongside Rio Grande's founder, Saul Bell, in the Raw Materials department specializing in gold and diamonds. "I was so lucky to learn from and work with Saul Bell," she says. "He was an amazing man. He taught me how important it is to deliver exactly what the customer wants, and then some." Shannon joined Rio Grande with a BFA in Jewelry Design from NMSU and later became a Graduate Gemologist with GIA and an Accredited Jewelry Professional.

Benefits of a Wholesale Account

Wholesale membership offers much more than the benefit of purchasing precious gemstones. Wholesale members enjoy in-house gemologist support, special price breaks, shipping discounts, full product access to gold and silver, no-appointment Jewelry Tech Team support and so much more!

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Let's Get Started

Provide one of the following documents along with some additional information and you’re on your way!

  • Federal EIN Confirmation Number
  • State Tax ID
  • Jeweler Board of Trade number
  • Secretary of State business registration
  • Apply Now >