Thesis Gems and Jewelry

cateclaus_thesis_1 - Catherine Claus.jpg

T. 1.510.556.6443

1442 A Walnut St. #429

Berkeley, CA 94709



Fundamentally, philanthropy is the core and guiding principle of Thesis Gems and Jewelry.

We are proud to be able to not only give back to our local US environmental efforts through 1% For The Planet, but also work towards giving back to the local mining communities where our gems originate.

The jewelry we make is meant to honor every step of the journey, including the land and people involved, and ultimately to become an heirloom with investment-quality gems and gold for our clients.

Bespoke jewelry you can be proud to share with generations to come.
— Cate Claus