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How ashes become a diamond

A remarkable process

Heat, pressure, time, and carbon. That's what's needed for a Diamond to form in the earth's mantle. Our amazing machines can simulate these same conditions, and grow a real Diamond from the carbon in your loved one's ashes.

A hand wearing a diamond ring, holding a white daisy.

An intricate five-stage journey

A closed blue Eterneva Welcome Kit box.

Stage one

The Welcome Kit

To start the process, you order the Welcome Kit. It includes a video, instructions, return postage, and needed tools to send us your loved one's ashes. If you would rather hand them to us in person, you can drop them off at our lab in Kerrville, Texas.

A pinch of dark carbon powder in a glass dish.

Stage two

Carbon purification

During this phase we're isolating the carbon from all the other elements found in ashes or hair. While much of the elemental carbon burns off during cremation, there still remains carbon in bones called carbonates, which is the carbon we're isolating from all other elements. 1-4% of remains are made up of carbon and it takes us many weeks of work to purify and extract it. The result is a carbon graphite powder, which is the starter material for the Diamond! We'll share a video with you so you can see the amazing transformation from ashes to carbon.

Want to know your loved one's total carbon content? Ask us about third-party testing of their ashes or hair.

A diamond growth machine in the Eterneva lab.

Stage three

Diamond Growth

We have Diamond growth facilities in Kerrville, Texas, Germany and Switzerland, with some of the top scientists in the world. At this stage, our incredible machines replicate the growing conditions under the earth (2,500 degrees Fahrenheit and 870,000 pounds per square inch). Over time, your loved one's carbon crystallizes on top of a Diamond seed, and grows into a raw Diamond.

Everyone's carbon is uniquely different, so it's an iterative process of our scientists finding the perfect combination of heat and pressure for each individual person! We video this entire process and our scientists work with the utmost precision and care, because they know the stories of all the remarkable people they're working on.

When you commission an Eterneva Diamond, it is completely custom-made and as unique as your loved one.

Adelle Archer, Co-founder
A rough diamond held in tweezers by gloved hands.

Stage four

Diamond quality assessment

After the raw Diamond has fully formed, we scan the Diamond (like an x-ray!) to identify the placement of inclusions in the Diamond and to ensure the shape and size we're targeting will fit nicely within the raw Diamond without any visible inclusions. It's quality over speed at this stage, because we want your loved one's Diamond to be perfect!

A master cutter inspecting a diamond through a loupe at his bench.

Stage five

Diamond cutting

Once your loved one's Diamond passes our quality inspection, it will be cut by a master cutter with absolute care and precision. The biggest influence on a Diamond's quality and sparkle is the cut, so we're really particular about who we work with.

The finishing touches

  • Diamond Coloration*

    If you've selected a green, red, pink or black Diamond for your loved one, we'll take their Diamond through an additional Diamond coloration stage. At this stage high-energy particles are combined with natural elements (like Nitrogen and Boron) to create many 'color centers' through the stone, giving it a beautiful coloration.

  • Grading & Engraving

    Your loved one's Diamond is a 100% real Diamond, so it is graded by our in-house GIA-credentialed gemologist, who will examine your Diamond and grade its color, clarity, and cut for your Eterneva Diamond Report. Your personal inscription is engraved on the Diamond, and the engraving is included.

  • Jewelry Setting*

    We can help arrange the perfect setting for your loved one's Diamond, or you can choose to have it set locally. We have a curated line of setting options to choose from, or you can work with one of our masterful jewelers in designing your own custom piece. We don't begin setting planning or arrangements until cutting is complete, because the jeweler needs the Diamond's dimensions for the setting design.

*Optional services

An open Eterneva Welcome Kit.

Ready to get started?

Put your $1 deposit down to order the Eterneva Welcome Kit. It contains cubic zirconias so you can see the different Diamond size options in person, and the tools you need to package up about a half-cup to one full cup of ashes to send back to us.