The Diamond Foundry is changing the industry by operating a transparent and sustainable business, by applying modern-day craftsmanship to create diamonds above the ground in America and empower jewelry brands that inspire modern women.

The founding team of M.I.T., Stanford, and Princeton engineers previously developed pioneering breakthroughs in solar power technology. They had a hunch that techniques used to harness the energy of the sun could also be used to make a better diamond, atom by atom.

The Foundry started by studying the laws of nature. Diamonds are born from a fiery heat, so we set out to create a plasma of unprecedented energy density. We coded software to run tens of thousands of physics-based simulations. In a warehouse just south of San Francisco, they built novel plasma reactors with hundreds of individually precision-engineered parts. Then, they formed plasma as hot as the outer layer of the sun.

It is far from easy to create diamonds above the ground – most of the early experiments failed. But after years of refinery of craftsmanship, they were able to create the conditions in which nature forms diamond on its own. The diamond growth results in each diamond being unique.


Most simply, the Diamond Foundry discovered a fourth state of matter by which atoms can attach to nature’s diamond crystal lattice and grow it in size. One by one, the atoms stack on top of a thin foundation of diamond, extending the unique crystal structure of diamonds extracted from the Earth. Atom by atom, it grows into a pure, jewelry-grade diamond of gem size. (They then slice off and reuse the starting material any number of times.)

They are now able to create stunning diamonds in their San Francisco foundry. Each is a unique, one-of-a-kind crystal of pristine diamond, just like mined diamonds -- but morally pure as well. Relative to industrial mining, the production is boutique and intensely based on modern-day craftsmanship; and unlike hundreds of millions of carats produced by mines, they are 0.01% rare.

The Foundry uses solar power credits to reduce their carbon footprint to zero, to guarantee the impeccable provenance of the diamonds: each is born at their foundry in California.

To find our more, please visit  www.diamondfoundry.com

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