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New and Vintage Fine Jewelry

"Our success is maintaining high standards of knowledge, service and quality fine jewelry." Jeff Deleuse, Graduate Gemologist & Certified Appraiser Gemological Institute of America.

 Deleuse Jewelers family owned, established in 1945 Nice, France,

San Francisco 1951 and Fairfax, Ca 1982

Fine Jewelry Custom Designs

Insurance and Estate Appraisals by Appointment

Testing Lab on Premises  view

Tuesday-Saturday 10:30-4:30 

55 Broadway,  Fairfax, CA 94930     415-459-3739  

Wear Art

Diamond disco necklace and earrings. Hand-fabricated diamond balls interspersed on chain. One-off.

Janet Deleuse Couture

One-off designer couture in fine fabrics.

Blog posts

Buyer Beware...Lab Grown Diamonds vs. Mined Diamonds, Ongoing, Updated Information

Buyer Beware...Lab Grown Diamonds vs. Mined Diamonds, Ongoing, Updated Information

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From the Gemological Institute of America: Fancy Colored Diamonds

From the Gemological Institute of America: Fancy Colored Diamonds

        Diamonds in the normal color range are colorless through light yellow and are described using the industry’s D-to-Z color-grading scale. Fancy color diamonds, on the other...

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