Sell Diamonds NYC was established to serve all people looking to sell diamonds and get a great price for selling the diamond. We have been in the jewelry business for a long time and are located in The Diamond District. We specialize in diamonds so if you are looking to sell any kind of diamond jewelry, whether a ring, engagement ring, necklace, stone, rare stone, colored stone or gem we can help you make the selling of the diamond a smooth, profitable experience for you.