Our Story


“We hand-fabricate our jewelry the old fashioned way. A photo of a custom designed ring that we finished making on our work bench.  Our speciality is high quality workmanship in gold smithing, stone setting and all repairs.”

Jeff & Janet Deleuse, Deleuse Jewelers


Beginning the tradition in 1945 until present, Deleuse Jewelers has always been a family business owned and operated by the Deleuse family.

John Deleuse began his career in Horology, graduating in 1934 from the Ecole Nationale d’Horlogie de Cluses and opened the first store in Nice, France his home town.

After emigrating to the United States, John opened his second store in San Francisco, in 1951.  John Deleuse’s youngest son, Jeff, joined the family business after receiving a degree in Psychology. Jeff Deleuse then earned a Graduate Gemologist degree with an emphasis on diamonds and gemstones and became a certified appraiser. Jeff’s wife, Janet Deleuse, married into the family after her formal education in Molecular Biology. Janet brought her artistic talent for designing custom jewelry.

In 1982, Jeff and Janet Deleuse opened the third Deleuse Jewelers store in Marin County independent of Deleuse Jewelers in San Francisco. Deleuse in Tiburon offers professional services by specializing in gemology and fine diamonds; members of the American Gem Society, American Gem Trade Association and the Contemporary Jewelry Design Group.

With attention to detail, quality, design concepts and complex restoration of fine jewelry and watches and insurance appraisals are offered as our services. Deleuse Jewelers in Tiburon, California carry on the tradition of customer service that began in Nice in 1945.

Showcasing our custom designed fine jewelry that we manufacture exemplifies the creativity and excellent quality that hallmark Deleuse Jewelers. With an increasing portfolio, many of Janet Deleuse’s custom jewelry pieces have been featured in WWD, Town & Country, Robb Report and Lustre magazines. Janet Deleuse is an accepted member into the Contemporary Jewelry Design Group of the U.S.

Celebrating 35 years in Marin and 71 years since the first boutique on the Rue De France, Nice, France opened, Janet & Jeff Deleuse owner and operate Deleuse Jewelers in Tiburon, CA look forward to many more years of continued service.

We are thankful for the years of devoted and wonderful customers—– we are devoted to you.

Jeff and Janet Deleuse

Deleuse Jewelers, 1771 Tiburon Blvd., Tiburon, CA 94920   415-435-2484


Avenue Promenade des Anglais, Nice, One block from Deleuse Jewelers. Photo circa 1964


Deleuse Jewelers original Store, established in 1945 by John Deleuse, at 2 Rue de France, Nice, France. Photo circa 1964