Global Connections Makes Boston Diamond Company the Premier Diamond Source.

339 Washington St. Boston, MA 02108

(617) 263-6447| info@bostondiamond

Boston Diamond Company

Locally Known, Globally connected. Boston's Largest Supplier of Diamonds.

Locally Known, Globally connected. Boston's Largest Supplier of Diamonds.

Locally Known, Globally connected. Boston's Largest Supplier of Diamonds.Locally Known, Globally connected. Boston's Largest Supplier of Diamonds.

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About Us


About Boston Diamond Company

With over 7000 loose diamonds in stock, Boston Diamond Company is Boston's Premier Luxury Diamond Supplier and Jeweler. We make custom handcrafted engagement rings and wedding bands, with emphasis on producing our work one piece at a time to ensure that every piece is made to the highest quality standard. We believe in providing our clients unparalleled customer service, by guiding them every step of the way from design, purchasing a diamond, ensuring timely delivery, to maintaining and warrantying our work long after their purchase.  


Cultivating Sparkling Relationships

At Boston Diamond Company, we are dedicated to fine craftsmanship and making every ring special and symbolic of our clients' love and commitment for their partner. We maintain a holistic approach to our business to ensure that each piece is environmentally friendly, socially responsible, and incredibly unique.

When you order from us, whether it's your first or tenth time, you become part of our family. During your search for the perfect gemstone or setting, we pledge to help you through the process. We hope that your purchase from us becomes the first of many.


The Boston Diamond Company Difference

Boston Diamond Company is committed to exceeding your expectation by partnering and negotiating with global diamond suppliers in order to give you one of the largest diamond inventories in Boston at unbeatable prices. We think it's what you deserve. With over 7000+ loose diamonds in stock, we offer the best for the one you love. 

Contact Us

We're Here to Help!

Boston Diamond Company

339 Washington Street, Boston, Massachusetts 02108, United States

(617) 263-6447

Open today

10:00 am – 06:00 pm

Private diamond and custom design consultation by appointment only.

Email: to make your appointment today.