Wedding Jewelry. Diamonds. Gemstones. Lab Grown Diamonds.

We’re an established jewelry shop in New York City with a reputation for honesty, distinguished service and exquisite jewelry. Our prices make our pieces accessible to all.

Whether you’re looking for wedding jewelry, loose diamonds, gemstones, or lab grown diamonds, we’re committed to ensuring you find the perfect piece. We can also work with you to create your own customized jewelry designs.

Call to discuss your jewelry, diamond, or gemstone needs: 1-212-819-0033

Diamond Search

Filter & Find the Perfect Gem

Browse an extensive catalogue of diamonds in every shape, size, cut, color, and carat.

New: Lab Grown

Browse a Man-Made Collection

A continuously updated list of available lab grown diamonds for you to browse.


In addition to our fine selection of diamonds and jewelry in store in New York City, we offer the following services:

  • Custom jewelry designs
  • Remodelling of your diamonds and colored stones
  • Jewelry repair
  • Purchase of estates, gold and diamonds
  • Appraisals
  • Diamond and colored stone re-cutting
  • Gem identification and appraisals
  • Mined and lab grown diamonds with GIA, IGI, GCAL certificates
  • Lab grown diamonds
  • Gold, diamonds and estates purchased
  • Honest and unbiased advice

Recent News:

Anglo-American CEO: I’d Buy a Lab Diamond for My Daughter

Mark Cutifani, CEO of Anglo-American, the 85 percent owner of De Beers, surprised attendees at De Beers’ recent Business Excellence Seminar when he said he would buy a lab-grown diamond for his daughter, three sources in attendance told JCK.

An excerpt from a recent article in JCK Magazine.
Original content here

The Future of Diamonds?

Also, you can check out our take on the future of lab grown diamondsIs mining a thing of the past?

lab grown diamonds are best

Check out a small sampling of our lab grown diamond inventory with our: lab grown diamond inventory sheet (PDF)

A Gorgeous Short Video

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Latest Addition:

Find Katz Jewelry in New York City:

We are located at 37 W 47th Street #25, New York, NY 10036, right in the heart of New York City’s ‘Diamond District’.