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Diamond Jewelry

Deleuse Jewelers features and sells natural diamonds.

Jeff Deleuse, Graduate Gemologist

Read about diamonds and how to buy a diamond by Jeff Deleuse

"Janet & Jeff designed our wedding rings 5 years ago and I went back to them for another ring for my wife. Excellent design and excellent quality diamonds and aquamarine. They spent a lot of time working with us on the design, selection of the diamond and aquamarine. Worth every penny!" Shawn S., Tiburon, CA

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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.