About us

Based in New York city’s Diamond district, The Diamond Oak is a reputed dealer of pre-loved fine jewelry that helps our prudent clientele find their perfect vintage and antique pieces. Superior quality and authenticity are two guiding forces for all our transactions. All our pre-owned jewelry is renewed to their brand-new condition and reach our premium clientele with a certificate of authenticity. We house exclusive brands like Tiffany, Cartier, Bulgari, Harry Winston, Van Cleef & Arpels, Pomellato, Buccellati, and more. Some of our products include pre-owned Tiffany engagement rings, pre-owned Tiffany eternity rings, pre-owned Tiffany bracelets, pre-owned Tiffany rings, pre-owned Tiffany necklaces, pre-owned Tiffany cuffs. Our expert craftsmanship allows us to create bespoke fine jewelry that adheres to all your specifications. With seventy years of market presence, we house exclusive pieces that are perfect for celebrating memorable milestones of your life and also serve as a legacy that you can pass on. If you have one such piece lying in your closet, you can contact us for an estimate. For more details about our products, visit our site at https://thediamondoak.com/pages/about & https://thediamondoak.com/blogs/journal.