Invest in jewelry that you believe in
We believe that people and the environment are more valuable than any gem. We are fully transparent; the scaffolding for ethical practices. And we donate 1% of our gross sales to organizations fighting to conserve and defend our planet. That's our thesis. Guaranteed forever.
Make it your own
the·sis | a statement or theory that is put forward as a premise to be maintained or proved
"My pendant is a piece I will cherish. Thesis created a stunning custom pendant for me using elements from a sentimental necklace that once belonged to my Grandmother. The piece feels so great when I put it on." - Elisa L.
"From the thoughtful packaging to the stunning ruby inside, my necklace from Thesis has become my most cherished piece of jewelry. I wear it every day- it has become a part of me!" -Suzanne B.
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...
At Thesis, we specialize in one-of-a-kind jewelry handmade by master artisans. We’re honored to share our custom creations — and to help bring your very own dream design to life. Our passion for beautiful, timeless jewelry is paralleled only by our passion for ethical labor and sustainable mining. We support best practices from source to sale. This combination of craftsmanship and transparent sourcing is what brings clients to work with us. Learn how you can create a unique and meaningful heirloom to last for generations with Thesis. (Gold Pebble Pendant with beach pebble, 18 karat reclaimed gold and Canadian diamonds) The Thesis Difference When you create a piece of jewelry with Thesis, you know who is crafting your design...
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.