Address: 55 W 47th St #203D New York, NY 10036 Phone: 646-755-3981 Description: That’s right, you'll determine the most store is predicated right within the heart of the famous Diamond District, right here in ny . The diamond district is where it all happens! which is strictly why we've chosen this section of NY to be the house of our business. By being constantly amid the action, we will well and truly keep our fingers on the heart beat of the fast paced diamond trade. Sell Diamonds in NYC. If you're looking to sell diamonds in NYC, then you've got found the proper place. We concentrate on buying diamonds altogether forms, we buy engagement rings, diamond jewelry, loose diamonds, rare diamonds, melee diamonds, small diamonds, large diamonds over 4ct., rare exotic gems and more.