We are a Westchester New York based gold and coin dealer.  We buy and sell U.S. coins in gold, silver and copper, U.S. Paper Money and World coins in gold and silver. U.S. gold coins are our specialty. We have been major importers of U.S. gold coins for many years. We specialize in rare date and generic gold.  Considering an engagement ring? With locations in NYC and Westchester, let Coin Exchange find you the the perfect ring. Buy your diamonds from Coin Exchange with confidence. Get top dollar for selling your diamonds and diamond jewelry to us. We buy and sell loose diamonds, gemstones, engagement rings, diamond wedding rings, estate jewelry and signature jewelry pieces