About us
Ronen Matatov is the founder of Global Sky Diamonds, known for curating rare luxury watches and custom diamond jewelry with a focus on quality, trust, and timeless style.
Why Global Sky Diamonds?
Since opening in the heart of Manhattan’s Diamond District, Global Sky Diamonds has become a leading destination for luxury watches and pre-owned timepieces in New York City. We specialize in premium, authenticated watches from over 50 world-renowned brands—including Rolex, Audemars Piguet, Patek Philippe, and Cartier—available both online and in-store. Each watch undergoes expert in-house authentication and quality checks to ensure precision and peace of mind. Whether you're a collector searching for rare Swiss watches or a first-time buyer looking for the perfect investment piece, Global Sky Diamonds offers competitive pricing, transparent service, and unmatched expertise in the luxury watch market. Discover why we’re trusted by watch buyers, sellers, and investors across NYC and beyond.
Blog posts
View all-
Pharrell’s Diamond Brain Chain by Jacob & Co.
Pharrell Williams stunned the fashion world with a custom "brain" pendant by Jacob & Co. — a hyper-detailed diamond masterpiece worth over $1 million.
Pharrell’s Diamond Brain Chain by Jacob & Co.
Pharrell Williams stunned the fashion world with a custom "brain" pendant by Jacob & Co. — a hyper-detailed diamond masterpiece worth over $1 million.
-
Post Malone’s $1.6M Diamond Fangs
Post Malone shocked fans and dentists alike with his $1.6 million diamond teeth. Here’s how he turned dental work into high-end jewelry history.
Post Malone’s $1.6M Diamond Fangs
Post Malone shocked fans and dentists alike with his $1.6 million diamond teeth. Here’s how he turned dental work into high-end jewelry history.
-
Emily Ratajkowski’s Iconic Toi et Moi Engagemen...
Emily Ratajkowski’s engagement ring stunned the fashion world — a custom two-stone "Toi et Moi" diamond piece that started a global trend in bridal jewelry.
Emily Ratajkowski’s Iconic Toi et Moi Engagemen...
Emily Ratajkowski’s engagement ring stunned the fashion world — a custom two-stone "Toi et Moi" diamond piece that started a global trend in bridal jewelry.
