Explore Our Collection

For those who value rarity in its most authentic form.

Boston Diamond Company's extraordinary design collaboration results in a truly singular creation, encapsulating your own unique story.

Design Your Ring
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Mindfully Made...

We pride ourselves on using only the finest, ethically sourced materials, crafted in Platinum and 18K Gold. One-of-a-kind fine jewelry that is exquisite, timeless and never mass-produced.

...Exceptionally Rare

Unlike most jewelry companies, Boston Diamond Company uses the highest quality diamonds and gemstones; D-F Color and Flawless to VS Clarity. Individually selecting every stone for its superior quality. Only the very best diamonds are accepted. There are no exceptions. 

Schedule an Appointment

At Boston Diamond Company, our clients always work with a Certified Gemologist and Diamontologist. Never just a diamond specialist or sales associate.

Learn more about the range of bespoke services and options available to you.

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What Makes Us Different

An Experience Beyond the ordinary...

Designing with Boston Diamond is as much about the journey as it is the final piece. Behind the doors of the Boston Diamond Company’s Private Newbury Street Showroom — a creative space where inspiration thrives and collaboration flourishes — your imagination is set free. Seasoned GIA Certified Gemologist and Diamontologist experts will design your piece of jewelry gauging your personality and desires, all in service of crafting your unique piece.  

We guarantee that, without exception, every single Boston Diamond Company piece is meticulously crafted to stand the test of time and last generations.

In The Press

We are beyond thrilled and honored to announce that we have been awarded "Best of Boston Weddings 2025" for Engagement Rings and “Best of Boston 2024” for Best Engagement Rings!

Thank you to our incredible customers for your unwavering support and trust. This recognition fuels our passion to continue to create the most unforgettable pieces for you!

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Our Happy Customers