The 4.5 Flat
Our sturdy signature, a symbol of commitment without the heft. Featuring a flat polished design (always with a comfort fit interior).
Hand Crafted in LA
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Diamond Foundry Diamonds
By harnessing the energy of the sun, Diamond Foundry has recreated the conditions in which diamonds form in nature. The result is ethical and sustainable diamonds grown through technology in California.
After years of solar power innovation, the team of Ivy League engineers uncovered a fourth state of matter. One by one, atoms attach to a sliver of nature’s carbon lattice, growing into a pure rough diamond within weeks.
The final product is a better diamond — cartel-free with zero carbon footprint.