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Thesis: collaborative custom fine jewelry with master goldsmiths

- traceable fine gemstones - antique and reclaimed diamonds - Fairmined gold

May 2022 jewelry show New York

Vanessa Fernándes

Andrea Capello

Duffy London

Joseph Ramsay

Leen Heyne

Molly Findlay

Our next event: fall 2022 in San Francisco

Joseph Ramsay

Maia Merav Holtzman

Leen Heyne

Andrea Capello

Molly Findlay

Vanessa Fernández

Duffy

David Charles Frank

Please get in touch for an appointment at  (+1-510-556-6443), or email cate@thesisgems.com.

Leen Heyne X Thesis Collaboration

Invest in jewelry that you believe in

Philanthropy is at our core. We donate to The Sierra Club, WIRES Wildlife Rescue, Partners in Health, Doctors Without Borders, No Kid Hungry, Better Without Mercury, Mercury Free Mining, Amazon Aid, Navajo Nation Health, among other organizations. 

Let jewelry symbolize something powerful for you

We wish you a year of love- not only for others but also for yourself. Express gratitude for what you've learned. We invite you to celebrate your failures as opportunities for growth, and to honor your understanding. Choose jewelry for yourself this year.