Finest quality diamonds, lowest prices and outstanding service are words we live by at Prime Diam.

Dear Jeweler,
With over 20 years of experience in the diamond industry, Prime Diam Co. is one of the leading diamond wholesalers in the United States. Prime Diam specializes in high quality loose diamonds. Most stones are certified by GIA and EGL.

Prime Diam Co. new headquarters :

7711 Bonhomme Ave., Suite 500

St. Louis, MO 63105