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Find the Perfect Diamond

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 Diamond Qualified? Sign up for a Wholesale Account! Click Here

Rio Grande Diamonds Are 100% Conflict-Free Logo

100% Conflict-Free Diamonds


Every diamond you buy from us is certified conflict–free. Rio Grande has earned certification from the Responsible Jewellery Council, verifying that we are in compliance with the Kimberley Accord and that our gemstones, supply chain and facility meet the high standards of the RJC Code of Practices. Further, RJC routinely conducts audits to certify that we are maintaining these standards.


Brilliant Resources


We’ve made purchasing diamonds easy and accessible. Review the Diamond Buyer's Guide and the Diamond Sizing Chart to help you understand quality characteristics of diamonds before you purchase any gemstone.

Diamond Buyer's Guide Diamond Sizing Chart

Lab-grown diamonds and a measuring tool

Alternative Gemstones Chart


Propose an alternative design with lab-grown diamonds, moissanite and lab-grown white sapphires. Learn more about the unique attributes of each gemstone in this simple comparison chart that speaks to pricing, appearance, hardness and uses. Research your favorites and let us help you source brilliant alternative gemstones.

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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 >