Adco Diamond

Adco Diamond ADCO Diamond is a family owned business since 1980; specializing in loose conflict-free diamonds, en ADCO Diamond is a name synonymous with diamond trading.

Meline and Norair Arslanian, Armenians living in Beirut, Lebanon, escaped the civil war raging there in the 1970s and settled with their two daughters in the Boston area to live in peace. The Arslanians (the “A” in ADCO) founded the business in 1980 as diamond wholesalers. Back then many of the diamonds were supplied by extended family members in Europe and Africa, who themselves had already been

in the diamond mining and polishing business for decades. Diamonds, as they say, is in this family’s blood. The two daughters (Aline and Rina) who arrived with their parents in 1975, went on to study biology and graphic design respectively at Boston University, when they too were drawn ineluctably to diamonds. After graduating from BU, they both enrolled at the Gemological Institute of America in Santa Monica, California before joining the family business. Combining backgrounds in science and art, Aline and Rina speak with authority and creativity on all aspects of jewelry creation. With Aline and Rina onboard, ADCO’s wholesale business evolved into the retail business it is today. Still operating as a family business, ADCO has established itself as a reputable retailer in Boston that has exponentially grown its clientele. Beyond specializing in loose diamonds for engagement rings, wedding bands, and all other precious gems, ADCO has branched out into custom jewelry design.

Some pieces aren't just jewelry. They're memories set in diamonds. ADCO Diamond
09/05/2026

Some pieces aren't just jewelry. They're memories set in diamonds. ADCO Diamond

Because one eternity band is never enough.ADCO Diamond
08/31/2026

Because one eternity band is never enough.

ADCO Diamond

A modern texture for a timeless tradition.ADCO Diamond
08/28/2026

A modern texture for a timeless tradition.

ADCO Diamond

Hand engraving turns gold into art. Every line, curve, and detail is created by hand-making each piece truly one of a ki...
08/19/2026

Hand engraving turns gold into art. Every line, curve, and detail is created by hand-making each piece truly one of a kind.

ADCO Diamond

Congratulations to Kian and Naz on your engagement in Greece! Thank you for having us play a small part. #
08/09/2026

Congratulations to Kian and Naz on your engagement in Greece! Thank you for having us play a small part.

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Some customers become family. Thank you for letting us celebrate life's special moments with you.ADCO Diamond
08/05/2026

Some customers become family. Thank you for letting us celebrate life's special moments with you.
ADCO Diamond

Every cut tells a different story. Together, they create something extraordinary. ADCO Diamond
07/22/2026

Every cut tells a different story. Together, they create something extraordinary. ADCO Diamond

Brilliance that never goes out of style. ADCO Diamond
07/18/2026

Brilliance that never goes out of style. ADCO Diamond

Salt in the air, sparkle everywhere. ADCO Diamond
07/16/2026

Salt in the air, sparkle everywhere. ADCO Diamond

We're back in the office and ready to make your diamond dreams a reality. Visit us at ADCO Diamond.
07/14/2026

We're back in the office and ready to make your diamond dreams a reality.

Visit us at ADCO Diamond.

Address

333 Washington Street, Suite 707
Boston, MA
02108

Opening Hours

Tuesday 10am - 5pm
Wednesday 10am - 5pm
Thursday 10am - 5pm
Friday 10am - 5pm
Saturday 10am - 2pm

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