Derco Jewelers is committed to providing top quality diamonds and jewelry at exceptional prices, with a dedication to service unsurpassed in the industry. Established in 1939 with founder Krikor (Koko) Der Abrahamian and headquartered in San Francisco since 1979, Derco has a loyal, discerning customer base centered in the Bay Area that extends across the country and throughout the world.

Our dedicated staff of professional gemologists, goldsmiths and jewelers, many of whom have worked with us since our showroom opened in San Francisco over 30 years ago has enabled us to build a strong and loyal customer base.

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Located in the San Francisco Gift and Jewelry Center, Derco is one of the most trusted and popular fine jewelers in San Francisco in Derco holds one of the largest selection of fine quality diamonds in the bay area, most of which are graded by the Gemological Institute of America(GIA). Visit our showroom to learn about the 4Cs of Diamonds with our expert sales staff so that you can fully understand the value of your diamonds. A diamond is forever.

Natural Diamonds Education

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A diamond's cut grade is really about how well the facets interact with light, whether its round, heart-shaped, marquise, or pear. Diamonds are renowned for their ability to transmit light and sparkle so intensely. Precise artistry and workmanship are required to fashion a stone so that its proportions, symmetry, and polish deliver the magnificent return of light only possible in a diamond. The cut is measured using the GIA's international grading system in which cut grades range from Excellent to Poor.

Custom Design

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One of Derco's specialties, our custom-designed jewelry service enables you to create the jewelry of your dreams. Working in-house, our cad designers and wax makers will design your order with utmost precision using 3-D computer aided design (CAD). Bring your ideas to Derco and let us turn your imagination into reality.

Customer Services

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Before purchasing your diamond, we recommend that you contact us. We do not process any payments of fulfill any orders until after we have verified that all items ordered are in fact in stock and to our standards. We recommend that you contact us first about any diamond you are considering purchasing.

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