Diamond & Gemstone jewelry proudly handcrafted in New York City since 1985!

    Thomas Cooper Jewelry produces classic fine jewelry handcrafted in platinum and high karat gold. Jewelry pieces feature ethically sourced diamonds, pearls and gemstones and consists of earrings, rings, necklaces, bracelets, brooches, and cuff links.

    "Quality craftsmanship is my passion; quality, value and trust are my obsession"
    -Thomas Cooper

    Never Stop Learning

    When you join the IGS community, you get trusted diamond & gemstone information when you need it.

    Become a Member

    Get Gemology Insights

    Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!