Posted on January 16, 2018February 8, 2018 by RamyrobinovDallas Jewelry and Diamond Buyers 35 years in the Dallas diamond trade. We are diamond importers as well as diamond buyers. All of our diamonds are 100% nautrally authentic GIA quality. We buy diamonds of any quality and have a large inventory of natural diamonds. Mr. Ramy Robinov has been in the Dallas Diamond business even before streets were paved in Plano, McKinney, Frisco, Garland, Collin County, Coppell, Allen, and the other now very developed areas around Dallas.