KOTLER’S specializes in purchasing diamonds of any size, color, clarity, shape, or make. When looking to sell your precious diamond; often local gold buyers, jewelers, pawnbrokers, auction houses, online buyers will not have the necessary knowledge, expertise, or market experience to offer a fair and honest evaluation. Our dedicated experts have over 75 years of combined experience in the diamond jewelry market. We are BBB A+ Rated diamond buyer. Sellers & Dealers from all over the New York metro area come to Kotler’s to sell their loose/ and set diamond jewelry! We are confident that our honesty, integrity, knowledge & commitment will offer both buyers and sellers the best overall value and experience. Come see us today for a FREE evaluation!

Rare Natural Colored Diamonds

We are the nation’s number one buyer of recycled diamonds

We have a huge network of partners through whom we sell the diamonds we buy, meaning we can provide you with the best possible price(s). In 2018 we traded natural diamonds worth $10m so you can have confidence and security in our prices and market operations.


We are at the center of the diamond market and are constantly buying and selling large volumes of stones so we can offer you the best price(s) possible. We revise our prices constantly to reflect market changes and we do this more frequently than our competition.

An established part of the diamond industry, Kotler’s was launched in 1999 with the aim of revolutionizing the way pre-owned luxury goods are bought and sold. With a focus not just on strong prices but also customer service, transparency and professionalism. This has earned us an A+ rating with the Better Business Bureau as well as thousands of satisfied customers!