Rio Grande Jewelry Supply, a Berkshire Hathaway company, recently opened its diamond office near the historic Diamond District in New York City.
As part of Rio Grande’s deepening collaboration with Richline Group (a Berkshire Hathaway subsidiary) and sister companies, this location offers customers a direct connection to thousands of high-quality natural and lab-grown diamonds.
The company’s optimized shopping platform simplifies the diamond sourcing process without compromising quality or ethical standards. This refined and innovative diamond shopping experience makes it easy to filter desired diamond specifications, view lab reports for lab-grown diamonds, place special orders, and more. Inventory is updated daily and continues to expand.
Theodore Mander, Rio Grande’s expert gemologist based in New York City, has experience in the jewelry industry spanning nearly two decades. Theo has earned several diplomas through the GIA and the International Gemological Institute, including Graduate Gemologist, Graduate Diamonds, and Applied Jewelry Professional. He has also taught internationally, leading gemological classes in Mexico as a fluent Spanish speaker.
Rio Grande and Richline Group have strengthened their shared core principles of environmental stewardship, responsible sourcing, and strict adherence to supply chain integrity from mine to storefront. As members of the Responsible Jewellery Council (RJC), Richline and Rio Grande diligently vet diamond partners for their ethical standards. Additionally, Rio Grande does not trade “conflict diamonds” under the purview of the international Kimberley Process (KP), assuring responsible diamond sourcing.
Founded in 1944 and located in Albuquerque, N.M., Rio Grande has 80 years of exemplary service in the jewelry industry. Rio joined Richline Group—a top precious metals and materials manufacturer and subsidiary of Berkshire Hathaway—in 2013.
Learn more at riogrande.com.