Our online Store is now closed. It will open every few weeks for a limited time to purchase our one of a kind jewels. Please check back soon.
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, among other organizations.
Make it your own
the·sis | a statement or theory that is put forward as a premise to be maintained or proved
Thesis Gems and Jewelry was born out of a passion for gemstones and a desire to create jewelry that people can wear with pride.
Humanity has been captivated by the emerald’s rare and beguiling shades of green - a magical, almost indescribable experience that has been a subject of poetry throughout the ages, going back to the ancient Roman time of Pliny the Elder.
A single gold ring generates 20 tons of mine waste on average. This proves just how powerful our choices can be as jewelry collectors. And it’s just one reason why Thesis Gems & Jewelry strives to make ethically and sustainably mined gold easy for anyone to trace and own.
The risks of the jewelry trade are no longer a secret. In light of regular reports of severe human rights and environmental concerns across jewelry materials supply chains, how can an independent designer wade through the complex web of concerns, lack of information, and misinformation to ensure that the materials purchased are not complicit in such risks? Is it possible for an independent designer to produce jewelry that can actually benefit others? If so - what does it take? Since the inception of her business in 2017, designer Cate Claus of Thesis Gems strove to create beautifully made, responsible jewelry that benefits everyone along the supply chain fairly and protects the environment. Always interested in environmentalism, and as...
Let jewelry symbolize something powerful for you- and wear it every day
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.