Although Janet has a background in molecular biology, it’s clear that jewelry is her passion. She generously spent time showing me her one-of-a-kind, completely hand-fabricated designs, many of which were years in the making. Explaining to me that, “Just like in cooking, you need very high quality ingredients,” Janet uses only the finest quality gems and pearls in her work.

Take, for instance, these earrings from her  collection featuring pink tourmaline cabochons and Biwa pearls. I learned that Biwa pearls come from Lake Biwa in Japan, but unfortunately the lake has become so polluted it hasn’t produced pearls for over 20 years, making this pair of earrings even more of a rarity.


I couldn’t help but admire this necklace, with expertly carved aquamarine flowers. Janet uses gem cutters in Idar-Oberstein, home to some of the most talented stonecutters in the world. Each flower has a platinum foundation on the back. You can see the deep color in the natural aquamarines with diamond accents shining in the center of each flower.

One of her recent pieces is this “Off The Grid” necklace, with a diamond and green tourmaline pendant on an 18K omega necklace. She said, “It’s an oval stone in a square peg!”

Janet popped into the back of the shop and brought out her latest project, a stunning amethyst tassel with a rose gold and diamond cap. She plans on making both a 30-inch chain and a collar, so the wearer can get two completely different looks. I like that idea!

When asked if she designs with a particular client in mind, she explained, “I design what I HAVE to – what’s inside me.” Her creative talent isn’t just limited to jewels. She also designs scarves, jackets and capes, which are all sold in her store and online. Janet started sewing her own clothes at age 12 making garments without using patterns.

Here’s Janet next to her net cape with a peacock feather border – all completely hand-sewn by her.

She also has one of Madonna’s seamstresses and a Fashion Institute Professor making some of her garments, such as these sequined jackets.

Thanks to Janet for the tour of her store – loved discovering a gem in the heart of Marin County!

Deleuse Jewelers is located at 55 Broadway, Fairfax, CA 94930

phone 415-459-3739

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“Janet, thank-you for everything you do. As I said before, you are truly an artist, and that is why it is so special buying jewelry from you.” Peter, Atlanta, GA

” Beauty, exquisite design, pleasant and personalized attention. These qualities have been constant in our 20 years of shopping with Janet and Jeff Deleuse – Two exceptionally talented and caring people. The Best!’ Helen P.,Belvedere

"This store has a very pleasant environment and Jeff and Janet are both kind, wonderful people. I used Jeff a few times for appraisals and he was very thorough and was happy to answer lots of questions. He uses scientific methods and tests rather than going solely by appearance as some jewelers will try to do, and his expertise is well respected. On one occasion, he even went out of his way to help expedite a deal for me. He has my highest recommendation. Suzanne T., San Rafael, CA

“Jeff is an incredible gemologist who knows everything there is to know about gem stones. He is a true professional and can be trusted. The quality of their work is impeccible and always consistent. I would recommend Deleuse Jewelers to anyone looking for a new, “bauble,” for themselves or someone special!” Terri B., Ross

"I have used Deleuse Jewelers for many years - for everything from purchasing jewelry to repairing jewelry to getting appraisals on jewelry. Their service and work is superb. I highly recommend them." Suzanne S., Tiburon, CA

"I purchased this beautiful chain from Janet Deleuse about 3 weeks ago. It was an online purchase so I was hoping I would be pleased. It exceeded my expectations as it was exactly as pictured. Delicate and perfectly crafted. Packing was very secure and shipping was quick. I would not hesitate to purchase from Deleuse again! Michele, New Jersey

“Janet and Jeff designed and crafted our wedding rings and did a great job. They worked with existing diamonds we had in an antique ruby cocktail ring, added the sapphire stone and made a beautiful pendant with the ruby. In addition, they designed earrings for our daughters. All are still in great shape today. They are easy to work with and very reliable and trustworthy.” Peg M., San Anselmo

Accreditation includes diplomas from the Gemological Institute of America and the American Gem Society and thirty years of experience.

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