Diamond Exchange NYC is a jewelry store in the New York Diamond District that specializes in wholesale diamonds and engagement rings. We are known as the best jeweler for engagement rings, loose diamonds, custom jewelry, diamond earrings, diamond jewelry, and more. We are 3rd generation diamond dealers located in the Diamond District in New York City. We are also a great place to sell your unwanted diamond jewelry as we buy old engagement rings, loose diamonds, diamond rings, and gold. We offer the best prices on wholesale diamonds. We carry GIA certified diamonds including round diamonds, princess cut diamonds, cushion cut diamonds, pear diamonds, oval diamonds.