Skip to Content
chevron-left chevron-right chevron-up chevron-right chevron-left arrow-back star phone quote checkbox-checked search wrench info shield play connection mobile coin-dollar spoon-knife ticket pushpin location gift fire feed bubbles home heart calendar price-tag credit-card clock envelop facebook instagram twitter youtube pinterest yelp google reddit linkedin envelope bbb pinterest homeadvisor angies

Committed to Our Customers for 40+ Years

At Keepsake Diamonds Corp., we put our customers first, listening to their needs and finding a jewelry piece to fit their style and budget. Located in Commack, NY, our customers come to us from all over Long Island, including Suffolk, Nassau, and Queens. You’ll find a wide selection of items at our jewelry store, from engagement rings and wedding bands to beautiful pieces made with diamonds and semi-precious stones. Our team is even prepared to design and create a custom jewelry piece for your wedding or any other special occasion. We’re here to serve you in all of your jewelry needs, whether that be buying a new piece or repairing one you already own. Get in touch with us today to learn more about what we can offer you.

stack of diamond engagement rings

A Jewelry Selection Backed by Expert Knowledge

Keepsake Diamonds Corp. has a team of jewelry professionals ready to help you choose the perfect stone, setting, or jewelry piece. Our owner, John, is a fourth-generation jeweler and certified diamontologist specializing in the knowledge of diamonds. This ensures that we only offer the best gemstones to our customers because they’re handpicked by John himself. He also has hands-on experience with all of the following:

  • Jewelry repairs
  • Watch maintenance and repairs
  • Custom bridal sets
  • Stone sorting and mounting
  • Appraisals
  • One-of-a-kind remounts and special orders

Everything You Need Right Here on Long Island

At Keepsake Diamonds Corp., we strive to provide our clients with the best experience possible. You don’t have to make a trek to the city to find beautiful jewelry pieces or engagement rings. You’ll find the same level of service, pricing, and quality of the Diamond District on 47th Street right here on Long Island at our jewelry shop. Let our experienced team help you choose the perfect item for yourself or a loved one. We encourage all our customers to return to us for every special occasion in their lives. We love helping customers build a beautiful collection of matching jewelry to commemorate their special moments. Stop by and see us today!

Your Local Jewelry Store