Life Element: Carbon.

Turning cremation ashes into diamonds can be done because Carbon [C] accounts for 18% of the human body and diamonds are crystallized carbon. Cremation diamonds are genuine diamonds grown by using the carbon contained within hair or cremation ashes.

Nitrogen [N] accounts for 3% of the human body, which gives a cremation diamond a Naturally Amber™ colour, varying from light yellow to deep orange.

Purely Colourless™ diamonds are created by removing nitrogen [N] from the carbon [C] prior to making a cremation diamond from the ashes.


Re-create natural environments.

Natural diamonds develop in an environment of extreme high-pressure and high-temperatures (HPHT) deep underground.

LONITÉ’s laboratory precisely re-creates this environment of extremely high temperatures (3000K) and pressures (60000Bar) and turns carbon from hair or ashes into diamonds.


Technical Know-How

I. Carbon Purification.
Cremated remains are purified for 5,000 minutes, over 3 days, to achieve 99.99% carbon, (4N or “4 Nines” purity).

Purification takes approximately 5,000 minutes, over 83 hours, for each memorial diamond ordered.

Impurities are removed and reduced to 1/500 of the original impurity content, providing 4N purity (99.99%).

Every little detail matters when turning ashes into diamonds. LONITÉ uses highly specialized state-of-the-art equipment that allows the greatest precision, quality and stability. Instruments are surgical grade, scales are accurate to 0.001(g).

18.2 MΩ.cm Ultrapure Water System.
Water is purified using a ultrapure water system to 18.2 MΩ.cm (1,250 times more pure than drinking water). All chemical containers are cleaned with the ultrapure water to avoid introducing external contaminants to cremated ashes.

II. Diamond Crystallisation.
Purely Colourless™ at 0.5-1.0 mg/hour.

The purified carbon is the foundation for cremation diamond crystallisation. It’s so pure and dense that even air is removed, along with atoms such as H₂O (water vapour) and O₂ (oxygen).

A typical Purely Colourless™ diamond grows slowly and steadily at the extremely slow speed of 0.5-1.0 mg/hour. Slow crystallization results in fewer flaws and better structure in the cremation diamond. This means a 1 carat diamond can take 750 hours, almost a full month, to grow.

1MW Backup Power Generator.
A Cremation diamond takes several weeks to grow and a power interruption or voltage instability, for just a few minutes, can have a drastic effect. Like hospitals, LONITÉ has backup power generators on standby at all times.

Thermostat Temperature Controllers.
LONITÉ uses high-precision thermostat temperature controllers to keep the core temperature of the diamond chamber precisely at 2651.6°C [*]. This ensures that the inside temperature remains constant and unaffected by any external temperature changes.

[*]Note: Data is modified to protect technical secrets.

Scientifically Proven.

LONITÉ cremation diamond origin analysis on hair and cremated bones img 1 LONITÉ cremation diamond origin analysis on hair and cremated bones img 1

Fluorescence and luminescence tracing are commonly used in diamond analysis under special environments such as short wave ultra-violet light. The LONITÉ laboratory uses even more extensive and advanced examination tools.

Atoms Tracing on Chemical Density.

A memorial diamond from ashes looks the same, both optically and chemically as a natural diamond.

However, experts at LONITÉ can scientifically and technically differentiate genuine cremation diamonds because of slight differences in the carbon atoms and chemical density.

Certification of Origin with Analysis Report.

All LONITÉ cremation diamonds are delivered with both a certification of origin and a process analysis report, documenting and proving scientifically that a LONITÉ diamond originates from the ashes of the client’s loved one.

Verified by Independent Research Institutes.

The production records, laboratory data, chemical analysis and physical factors of LONITÉ cremation diamonds can be re-verified and validated by any independent certification and quality control institute.

LONITÉ Turns Hair and Ashes into Cremation Diamonds

The origin of the carbon in your memorial diamond can be scientifically proven. As of today, only LONITÉ’s eminent technical team can provide this exceptional technological breakthrough at an affordable cremation diamonds cost.


LONITÉ Laboratory and Process: From Ashes to Cremation Diamonds


Material Examination

The hair or cremated ashes are first analysed to determine whether they contain enough carbon to be turned into a diamond. The carbon content of ashes differs from case to case, and the total contained carbon may or may not be enough for LONITÉ’s diamond creation process. It is highly suggested that clients provide additional hair samples from the family as a supplement/backup plan.

Carbon analysis meters display during cremation diamond creation process step 1

An elemental analyser is used to determine the carbon percentage in hair/cremated ashes


Planetary Nano-Crystallisation

In a special solvent, impurity remover is applied to remove unstable chemicals. The material (ashes or hair) is then milled and stirred into a nano powder in a special chemical gas environment. The impurity remover attaches to impurities, which are then isolated from the materials by a high-speed centrifuge. Furthermore, special treatment and techniques are implemented so the remaining carbon is adequately preserved while other elements extracted are reduced to a fractional minimum.

Milling equipment similar to the movement of planetary systems, involving both rotation and revolution


Heated Vacuum Purification

The milled, purified material is heated to extreme temperatures to eliminate volatile impurities. At this step oxygen is removed and inert, protective and reducing gases are injected to protect the ashes or hair from oxidation. Double handling is applied for chemical extraction. In some cases, high voltages may be applied in an energised airtight container to melt and evaporate chemicals, further purifying the solid carbon.

A muffle furnace is injected with a gas mix to protect the ashes or hair from oxidation


Wet Chemical Carbon Purification

The carbon from hair or ashes is then placed in a safe and resistant cabinet, in a wet chemical environment, to increase purity by removing heavy metals. The program-controlled process of specific temperatures, stirring speeds, and the addition of chemical reagents ensures the carbon quality. At the end of this final purification step, the carbon purity reaches as high as 99.99% (4N Purity). If the purity levels have not reached 99.99% by this stage, additional customised purification steps are implemented to remove the specific remaining impurities.

Chemical specialist enhance purity

STEP 5 HPHT Crystallisation

High-Pressure High-Temperature (HPHT) presses transform purified carbon atoms from hair/ashes into genuine diamonds

The purified, extracted carbon is converted into flake graphite and formed into a cylinder shape. Before being placed into the diamond synthesis machine, the cylinder is carefully wrapped in protective and corbelled materials. This prepares it for the final technical steps that require pressure and temperature measurement, insulation and protection. The transformation takes several days to several months depending on the size and color of the memorial diamond to be created.


Diamond Polishing

Unlike mined diamonds, rough memorial or cremation diamonds are usually mixed with graphite and other materials, paticuliarly on the surface. The rough diamond is carefully polished by experienced experts who deal solely with grown diamonds. A rough un-cut memorial diamond can be provided if requested. However, this rough diamond should NOT be cut at any time after it is delivered because inexperienced diamond cutters without specialized cutting skills are extremely likely to break the diamond. Please contact us if you do need to re-polish the diamond or set it into a jewelry ring or pendant