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Deleuse Jewelers
Design Jewelry
Designer
Janet Deleuse
Janet Deleuse Designer
Jewelry Highlights
Natural Diamond
Platinum

Deleuse Diamond Jewels

By Janet DeleuseJun 20, 2026

Diamonds in gold and platinum, just what we love.

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Jeff and Janet Deleuse opened Deleuse Fine Jewelry in Marin County, California in 1982.

Jeff Deleuse is a Graduate Gemologist and Certified Appraiser. Past members of the American Gem Trade Association and the American Gem Society for over thirty years.

Jeff offers a service for appraisals, fabricating custom designed fine jewelry and specializing in fine jewelry repairs and restorations.

Janet Deleuse designs one-off high jewels and ladies couture made in USA. Deleuse skincare products are formulated and made by Janet Deleuse.

All gold and platinum used for manufacturing is purchased from our local refinery is 100% recycled. Deleuse Jewelers was established in 1982 with a policy of recycling, ethical sourcing.

We do not have employees in our store.