About K-Jon's Fine Jewelers


The roots of K.Jons Diamonds & Gems stretches back more than 50 years. The business literally started from the ground up. Kay and John, Stan’s parents and the namesakes of K.Jons, were avid rockhounds and gem and mineral enthusiasts. Stan grew up learning to appreciate nature’s wonders on family camping trips looking for geodes, agate, fire agate, and petrified wood, as well as other stones.

Stan and his wife Mary opened K.Jons Diamonds & Gems in Atascadero in 1980; and after outgrowing their original store, they were excited to move into their new showroom at the same location in 2004. They and their crew are passionate about quality gemstone and diamond jewelry and providing excellent service for their customers.

In keeping with our strong beliefs in ethics, value, and continuing education, K.Jons Diamonds & Gems is honored to be a member of the American Gem Society (AGS). AGS has strict ethical and professional requirements and less than 5% of jewelers nationwide are able to qualify for membership. We are proud of the honor and responsibility that AGS membership brings with it.

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