How diamonds are created from ashes
The process is based on the fact that the human body contains approximately 18% carbon. After cremation or aquamation, the ashes still contain traces of carbon. Specialized companies extract and purify this carbon, then subject it to a high-pressure high-temperature (HPHT) process that replicates the conditions of natural diamond formation in the earth's mantle.
The result is a certified diamond — physically and chemically identical to a natural diamond, but originating directly from the remains of the deceased.
What to know before starting
- Quantity required: 100 to 500 grams of ashes depending on the company and desired diamond size. Since total ashes after cremation amount to 1–3 kg, it is entirely possible to use a portion for a diamond and keep the rest.
- Timeline: 3 to 9 months depending on size and company
- Diamond size: 0.1 to 2.0 carats, depending on budget and available carbon
- Colour: blue (most common — natural result of boron present in ashes), yellow, colourless. Some companies allow colour selection.
Companies accepting Quebec clients
No Quebec or Canadian company currently offers this service. The main companies accepting ashes shipped from Quebec are:
- Algordanza (Switzerland) — industry pioneer, founded 2004
- Eterneva (USA, Texas)
- Heart in Diamond (UK)
- LifeGem (USA, Illinois)
All of these companies manage international shipments and will provide a secure protocol for sending ashes.
Prices
| Diamond size | Approximate price |
|---|---|
| 0.1–0.3 carat | $1,500–$3,500 |
| 0.3–0.5 carat | $3,500–$6,000 |
| 0.5–1.0 carat | $6,000–$12,000 |
| 1.0 carat and above | $12,000–$25,000+ |
Are they real diamonds?
Yes. Diamonds created from ashes are synthetic (lab-grown) diamonds — their chemical composition is identical to that of a natural diamond. They are different from imitations (glass, cubic zirconia) and can be certified by gemologists.
This service does not replace a funeral
It is important to note that transformation into a diamond happens after cremation or aquamation. It does not replace a funeral service — it is a permanent memorial option that complements other forms of disposition. Families typically organize the funeral first, then decide weeks or months later whether to order a diamond.
Updated: March 2026