DPMEX is a direct supplier to the retail trade. We purchase diamonds, diamond melee, gold, and platinum from jewelers and pawnbrokers all over the east coast. We manufacture diamond engagement rings, gold, silver, platinum castings, CAD, CAM, Finishing, Diamond Wholesale (Memos Available) GIA, HRD, AGS, IGI, and EGL USA. Our Products and services can be found here http://dpmex.com/products---services.html.