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Thesis Gems and Jewelry

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Berkeley, CA
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About Thesis Gems and Jewelry

We believe that people and the environment are more valuable than any gem. That’s why Thesis seeks sources that are committed to ethical treatment of workers and the land. Every aspect of our supply chain is carefully monitored for fair labor practices and environmental sustainability. And we donate 1% of our profits to organizations fighting to conserve and defend our planet through our membership with 1% For The Planet. Our partnerships work to ensure that your jewelry is ethically made, from the time your gem is liberated from the earth in Africa, Australia, Sri Lan...Read More

Thesis Gems and Jewelry

Established in 20171stDibs seller since 2018

Contact Info

Featured Pieces

Rose Diamond and 18 Karat Gold Hammered Pendant Necklace
By Thesis Gems and Jewelry
Located in Berkeley, CA
A rose diamond is nestled in a hand hammered disc of 18 karat gold. Centering, a pendant to wear every day. Fine VS quality rose nouveau vintage diamond from Perpetuum Jewels. 18 k...
Category

2010s Artisan Pendant Necklaces

Materials

Diamond, 18k Gold

Ruby and 18 Karat Gold Pendant Necklace
By Thesis Gems and Jewelry
Located in Berkeley, CA
A bright Gemfields Mozambique ruby is is nestled in a hand hammered disc of 18 karat gold. Centering, a pendant to wear every day and perhaps never take off. Mozambique ruby- 3 m...
Category

2010s Artisan Pendant Necklaces

Materials

Ruby, 18k Gold

Reversible Tsavorite and Diamond Pavé Drop Earrings in 18 Karat Gold
By Thesis Gems and Jewelry
Located in Berkeley, CA
Take these out on the town. Hand made by our master goldsmith and gem setter, these reversible drop earrings are made with the finest Bridges tsavorites and diamonds. Re-cut recycled...
Category

2010s Artisan Drop Earrings

Materials

Tsavorite, White Diamond, 18k Gold

Tsavorite and 18 Karat Gold Pendant Necklace
By Thesis Gems and Jewelry
Located in Berkeley, CA
A Tsavorite cabochon is is nestled in a hand hammered disc of 18 karat gold. Centering, a pendant to wear every day and perhaps never take off. Tsavorite cabochon 3 mm from Bridg...
Category

2010s Artisan Pendant Necklaces

Materials

Tsavorite, 18k Gold

Colombian Emerald Trapiche Serpent Pendant in 18 Karat Gold
By Thesis Gems and Jewelry
Located in Berkeley, CA
This serpent is one of a kind. A formidable piece, it was hand carved by our master goldsmith in London first in wax and then cast in 18 karat gold using traditional methods. These t...
Category

2010s Artisan Pendant Necklaces

Materials

Emerald, 18k Gold

Colombian Emerald Carved Horse Head and Diamond Lapel Pin
By Thesis Gems and Jewelry
Located in Berkeley, CA
This lapel pin features a 5.7 carat hand carved Colombian Emerald in a hand forged 18 and 22 karat gold setting and clasp. The shield cut diamond on the clasp is F-VS2, and 0.27 cara...
Category

2010s Artisan More Jewelry

Materials

Diamond, Emerald, 22k Gold, 18k Gold

Colombian Emerald Round Stud Earrings Handmade 22 Karat Gold
By Thesis Gems and Jewelry
Located in Berkeley, CA
Hand forged in California by our master goldsmith, these earrings feature Colombian emerald round brilliant emeralds, set in 22 karat gold. These earrings are 5.25 mm in diameter. En...
Category

2010s Contemporary Stud Earrings

Materials

Emerald, 22k Gold, Gold

GIA F/VS2 0.59 Carat Hexagon Diamond 18 Karat Gold Signet Ring
By Thesis Gems and Jewelry
Located in Berkeley, CA
Hand carved wax and cast substantial 18 karat gold signet ring featuring a vintage 0.59 carat brilliant cut hexagon. A ring to wear everyday in our substantial signature signet. His ...
Category

2010s Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold

6.9 Carat Unheated Yellow Sapphire and 18 Karat Gold Pendant
By Thesis Gems and Jewelry
Located in Berkeley, CA
This pendant features a 6.9 carat unheated Ceylon sapphire. It is an exceptionally clean crystal, and brilliantly cut (a fantastic cut is never to be underestimated). The sapphire ...
Category

2010s Artisan Pendant Necklaces

Materials

Yellow Sapphire, 18k Gold, Gold

Solid 18 Karat Gold and AGL Certified No Oil Colombian Emerald Serpent Bracelet
By Thesis Gems and Jewelry
Located in Berkeley, CA
This solid gold bracelet was hand carved in Paris by a master jeweler and set with a 1.97 carat AGL certified antique no treatment Colombian emerald. It fits a medium to large wrist ...
Category

Antique 15th Century and Earlier Classical Roman Bangles

Materials

Emerald, Gold, 18k Gold, 22k Gold

AGL Certified 3.13 Carat Colombian Emerald, Platinum and Diamond Engagement Ring
By Thesis Gems and Jewelry
Located in Berkeley, CA
This ring features a 3.13 carat oval AGL certified Colombian emerald. We sourced this emerald directly from our source in Colombia. It is a rich, verdant green and set in our one-of-...
Category

2010s Edwardian Engagement Rings

Materials

Emerald, Diamond, Platinum

Colombian Emerald, Australian Opal and Sea of Cortez Pearl Pendant Necklace
By Thesis Gems and Jewelry
Located in Berkeley, CA
This piece was made to honor color and phenomenal gems. This pendant features a 1.29 carat shield cut Muzo Colombian emerald, a rare baroque AAA Sea of Cortez Pearl and a solid Austr...
Category

2010s Artisan Pendant Necklaces

Materials

Diamond, Pearl, Emerald, 22k Gold

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