About Ultimate Diamond

Three generations. One address. The Diamond District's most trusted name in luxury watches and fine jewelry since 1959.

For over six decades, Ultimate Diamond has operated from 47th Street, the heart of New York City's Diamond District. What started as a small family jewelry business now buys and sells pre-owned luxury timepieces from the same address, with three in-house watchmakers on the bench.

Today, we buy and sell watches from the world's most prestigious manufacturers: Rolex, Patek Philippe, Audemars Piguet, Cartier, Omega, Vacheron Constantin, and more. Every watch that passes through our doors is inspected and authenticated by our team of three in-house watchmakers.

Our Promise

No games, no artificial markups, no pressure. When you walk into our storefront at 19 W 47th Street, you get honest pricing, expert knowledge, and a team that will spend twenty minutes with you even if you buy nothing. That is why we hold a 4.8-star average across more than 900 Google reviews.

Buy, Sell, or Source

First watch, a piece from your collection, or a reference nobody can find: bring it to us. Our archive spans over 13,000 watches, and our network allows us to find almost anything.

Visit Us

Our ground floor retail storefront is located at 19 W 47th Street, New York, NY 10036, in the Diamond District. We are open seven days a week. Walk-ins are always welcome, or book an appointment for a private consultation.