Lab Grown Diamonds

Diamond Foundry

Sustainably grown through technology in Silicon Valley. Diamond Foundry is growing real diamonds with the same beautiful characteristics as mined diamonds, but done the right way. 

About Diamond Foundry

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.


The number one question we get is “Are lab-created diamonds real diamonds?” (also called man-made or lab-grown)

The answer is a very simple yes.

The only thing that makes a lab-created diamond different from a natural is diamond is its origin. A lab-created diamond is “grown” inside a lab using cutting-edge technology that replicates the natural diamond growing process. The result is a diamond that is chemically, physically, and optically the same as those grown beneath the Earth’s surface.

Lab created diamonds, also known as engineered or cultured diamonds, are grown in highly controlled laboratory environments using advanced technological processes that duplicate the conditions under which diamonds naturally develop when they form in the mantle, beneath the Earth’s crust. These man-made diamonds consist of actual carbon atoms arranged in the characteristic diamond crystal structure. Since they are made of the same material as natural diamonds, they exhibit the same optical and chemical properties.

If we compare them to other popular diamond simulants, it’s obvious they are, in fact, the real deal.

The Diamond Growing Process:

01: Start With A 'Seed'

Each diamond is grown from a sliver of diamond previously grown — a completely self-sustaining cycle forged by Diamond Foundry engineers here in California.

02: Sun On Earth

The diamond sliver is placed inside a plasma reactor that replicates the energy and intensity of the sun’s outer core. This multiplies the sliver’s carbon lattice, growing the diamond atom by atom through solar energy.

03: Finished By Hand

Once the rough stone has taken form, our master cutters remove its thin outer layer of carbon to expose the diamond’s unique brilliance - a form and process identical to a mined diamond.

Diamond Warranty

We are proud to offer Diamond Foundry Lab Grown diamonds. We guarantee our listed gradings of Diamond Foundry diamonds to be accurate. Starting 9/15/18, all lab grown diamonds are graded by a third-party facility: GCAL.

We stand behind our products and warrant their graded characteristics through the following, full legal guarantee and warranty. 

"We're on a mission to make diamonds positive for the world." -  Diamond Foundry

In foundry, they use solar technology to sustainably create diamonds.

In their diamond workshops, they cut & polish each unique diamond to many unique shapes and as perfectly proportioned as only 1% of all diamonds in the world.

They create fine jewelry brands that empower and inspire.

They are about: Innovation, Craftsmanship, Simplicity, Sustainability, Owning Enabling Technologies, and Making a Difference.