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We are available by appointment only.

Appointments will last for 45 minutes and may be extended if there is no appointment directly after.  In between appointments, we will clean the showroom.  Masks and hand sanitizers are available for your convenience.

Please call or email us to set up an appointment.

ADCO Diamond
333 Washington Street / Suite 707
Boston, MA 02108
Phone: 617-720-0752
Email: info@adcodiamond.com


Tuesday – Friday: 10:00am – 5pm
Saturday: 10:00 – 3pm
Sunday and Monday: Closed

We are closed May 7-8th.  We reopen May 11th.


All prices shown are estimates.  The final price will be based on Finger size (if applicable) and Metal prices of the day.


Return Policy:

No Returns/Refunds after 14 days from date of purchase. Custom orders are final sale and not refundable and non-exchangeable. Merchandise that has been altered in any way is not returnable.

If an item is a custom made order or final sale, we will contact you for approval before we proceed with the order.

Please contact us before you return the merchandise for approval.

Items must be in their original purchase condition, including all product documentations. You will be responsible for return shipping and insurance fees.


Privacy Policy:

Adco Diamond shares your concern regarding your personal information. Please be assured we do not share your information with any unaffiliated party, unless it is necessary to verify a purchase or required by law. Any information collected is for customer service.

If you are under the age of 16, you should not use the website and should not submit any personal information.

ADCO Diamond validates parking at 33 Arch Street, which is a short walk away. Entrance to the garage is on Hawley Street With validation parking costs $24 than three hours during the week. On weekends, the cost is $11 with no time limit.