John Marmo Diamonds brings more than 50 years of experience to provide the best in jewelry products and services. We strive to be your lifelong jeweler and make servicing your jewelry as enjoyable as the original purchase.

We are happy to provide trustworthy expertise and a commitment to service like none other. No question or service is too insignificant. We stand behind our jewelry and view our jewelry services as the cornerstone of a personal and lifelong relationship with our customers.

Expert Jewelry Repair
Keep your jewelry collection in perfect condition with our professional jewelry repair. When thinking about jewelry repair, the earlier the better. We can check for larger issues with your jewelry before a lost stone or other damage occurs.

Estate Buying
We are happy to work with customers looking to sell their unwanted diamonds and jewelry. We will share our expertise and provide a current market, competitive offer. Our no pressure approach ensures you feel comfortable and in-the-know throughout the entire estate buying process.

Diamond Recutting
Do you have a broken or chipped diamond?We are happy to service your diamond and recut it to new perfection.Our diamond expert will help you with selecting the most ideal diamond cut for your needs and desires.

Loose Diamonds
If you have a setting already or need a loose diamond, we are happy to provide a large selection of loose diamonds to fit your exact needs.Let us decode the language of diamond buying and educate you throughout your diamond search.

Custom Jewelry Design
Still looking for the perfect bridal or fashion jewelry piece? From the perfect engagement ring to the next family heirloom, we are happy to create a custom jewelry design that matches your personal taste and desires. We are proud to use the latest computer assisted 3-D design techniques for a seamless, precise design. We work with you throughout the process to ensure a comfortable experience from start to finish.