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About
Long Island's premier coin dealer and precious metals buyer, Nassau Diamond Buyers in Hicksville, NY specializes in buying and selling coins, diamonds, gold, silver, and estate jewelry with generations of industry experience. Our GIA-certified experts provide honest assessments and transparent valuations for all your numismatic and precious metal needs, from rare coins and vintage estate pieces to bullion and scrap gold or silver. We're committed to delivering the best possible prices and a hassle-free selling experience for collectors and sellers throughout Long Island.