Zak Jewelry Tools, Inc. has been NYC’s Diamond District’s favorite shop since it first opened in 1989. Family-owned and operated since day one, it was established by Roman Zak, his four children and his son-in-law. As former jewelers, the Zak clan knew how important it was to have a shop that not only stocked products needed by the industry, but also had staff that was knowledgeable and innovative. Currently, the shop is still run by the same family members along with the addition of a few grandchildren. That’s three generations of Zak’s along with superb staff - this is what sets us apart from the competition!

We are located in the heart of NYC's diamond district at 37 West 46th Street 5th Floor. We are open from 8:30 a.m. to 5 p.m. Monday through Friday. We are accessible by NYC subways and buses. We are also a short walking distance from Grand Central Station and Penn Station. You can map us here.

Want to speak to us? Call us at 212-768-8122 or at our toll free number 800-369-6424. 

Want to write to us? Email us at or fax us at 212-764-7847.