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Jewelry, Gems, & Minerals/Jewelry makers mark


I have a ring (metal content unknown) marked with a A in a circle. Can you tell me whose mark this might be?

Hi Christy,
Quite a number of jewelers use a mark with an 'A' inside the circle. Some of them would be SEBASTIAN WORLDWIDE, INC. (in Irving), Allegro, Inc. in St. Louis (this one has a slanted A in a circle),Narragansett Jewelry Co., Inc. in PROVIDENCE, RI (the A is a stylized font),CLS, Inc. in Wilmington, (the circle is black and the A is not capitalized), and then Bel-Oro International, Inc. in New York (A inside one big and then one smaller circle.) Hope that helps.

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Jonathon Ohayon


Any diamond, jewelry or engagement ring related questions. I am a Graduate Gemologist and have extensive experience in the field of Gemology including diamonds, gemstones, and precious metals.


I have been working in the jewelry industry for over 10 years and am a Gemologist. I also appraise diamonds and jewelry for

Graduate Gemologist and Bachelors in Business Management. Apprenticed under Head Gemologist of for 2 years.

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