Chemical Vapor Deposition
Our Technology
The Essence of Life
Carbon — The Building
Block of All Life
Every living being is built on carbon. Bone ashes contain 3–9% carbon; hair contains 45–50%. This carbon — the literal substance of a life once lived — is the raw material for your memorial diamond.
Diamonds are the purest form of carbon. By extracting and purifying the carbon from your loved one's remains and growing it into a diamond crystal, we are not creating something artificial. We are revealing the most perfect form that carbon can take.
The Process
Chemical Vapor
Deposition (CVD)
CVD is the most advanced method for growing diamonds. Inside a vacuum chamber, high-energy microwave plasma breaks down carbon-rich gas molecules. The freed carbon atoms then settle — one atomic layer at a time — onto a diamond seed crystal, building a perfect lattice.
Unlike HPHT (High Pressure High Temperature), CVD requires no metal catalysts, produces naturally fewer inclusions, and gives us precise control over every parameter of the growing diamond.
No metal catalysts
HPHT requires iron/cobalt
Fewer inclusions
Cleaner crystal growth
Full customisation
Size & colour control
Higher purity
Atom-by-atom precision
Carbon Extraction & Purification
From Remains to Pure Carbon
Labelling & Tracking
Each sample is assigned a unique identification code for full traceability throughout the process.
Grinding
The ashes are milled to increase reaction surface area, enabling thorough chemical purification.
Chemical Purification
Calcium phosphate and other minerals are removed, isolating the pure carbon component.
High-Temperature Treatment
Purified carbon is treated in oxygen-free conditions to prevent oxidation and ensure maximum purity.
Vaporisation
The purified carbon is converted into gas form, ready to be fed into the CVD chamber.
CVD Diamond Growth Process
Growing the Diamond
Seed Preparation
A high-purity diamond seed crystal is placed inside a vacuum chamber.
Carbon Gas Introduction
A precisely controlled mixture of carbon-rich gases is introduced at low pressure.
Plasma Activation
High-energy microwave plasma breaks down the gas molecules, releasing carbon atoms.
Layer-by-Layer Growth
Carbon atoms settle onto the seed and arrange into a perfect crystalline lattice — an atom-thick layer at a time.
Controlled Duration
Growth continues for weeks to months depending on the desired carat weight and specifications.
Post-Growth Treatment
The raw diamond is cooled and extracted. It may show a brownish tint at this stage — normal for CVD stones.
Crafting Workflow
Cutting & Polishing
Marking
Expert craftsmen identify the optimal cutting areas using the diamond's internal structure.
Scanning
High-precision 3D scanning technology maps the stone's internal composition in detail.
Design
Cutting design balances weight retention, optical performance, and client preferences.
Laser Cut
High-energy laser technology ensures micron-level precision cuts without stress fractures.
Polish
Preliminary shaping is followed by hand-polishing to smooth surfaces and reveal maximum fire.
Quality Control
Final grading by the 4Cs (Colour, Clarity, Cut, Carat) and certification before delivery.
Guarantee
Ensuring the Quality
Every memorial diamond is graded by the internationally recognised 4C framework — Colour, Clarity, Cut, and Carat Weight — before delivery. Each stone is accompanied by a full quality certificate and a unique traceability code linked to the original remains.
Colour
Clarity
Cut
Carat Weight
See the Diamonds We Create
Discover our Eternity Cut memorial diamonds and jewellery settings.
View Memorial Diamonds