Transform a lock of hair from a human or pet loved one into a lab-grown memorial diamond — coordinated by Silmaril in New Zealand, with HPHT growth completed by specialist lab partners in China.
View Collection Ask a QuestionContact us to begin. Silmaril provides sample preparation and posting instructions. You send your hair sample — approximately 10g for human hair, or approximately 20g for pet fur — in clean, dry packaging. Saved locks work just as well as freshly cut hair.
On receipt by Silmaril, your sample is assigned a unique biological Life-ID. It is logged, labelled, and kept in its own dedicated container from this point forward. Photo and milestone video records are tied to this Life-ID where available, creating traceability throughout the entire process.
Hair is rich in carbon-bearing keratin. Carbon is extracted, purified to at least 99.95%, verified, then converted into crystalline graphite — the direct feedstock required for HPHT diamond growth.
Bio-carbon graphite is placed in a dedicated HPHT growth cell with a diamond seed and metal catalyst. At typical conditions of approximately 5.5 GPa and 1,450°C, carbon crystallises on the seed over roughly 35–50 days.
The raw diamond is cut, polished, and set into your chosen piece. GIA or IGI certification is available. The finished jewellery and any remaining hair are returned to you by insured courier, anywhere in New Zealand.
Hair is one of the most carbon-dense biological materials available. Each strand is composed largely of keratin protein — a long-chain molecule whose structural backbone is carbon.
Through our extraction and purification process, we isolate that carbon to 99.95%+ purity before it enters the growth chamber. The result is a diamond grown from the very substance of a life.
The finished stone has the same cubic diamond structure and core physical, chemical and optical properties as a mined diamond. It is not a simulant; specialised gemological equipment can identify its laboratory-grown origin.
Based in Long Bay, Auckland. International lab logistics are handled by Silmaril. Prices start from NZ$2,650, with transparent NZ inclusions and local support. Compare current overseas offers by currency, shipping, setting and certification choices.
Your loved one's material is never shared, blended, or combined with others. Each diamond is grown in its own dedicated chamber, assigned a unique Life-ID from the moment it is received by Silmaril.
GIA and IGI certification is available on request. Every stone is a genuine lab-grown diamond — not cubic zirconia or moissanite. We target VS clarity or better and D–H colour, with final grades confirmed after cutting.
Silmaril provides sample preparation and posting instructions. You never need to travel to us. The finished piece is returned to you by insured courier.
Dogs, cats, horses, sheep, rabbits, and many other companion animals are welcome where the fur, hair or wool sample is suitable. The process and pricing are identical for human and pet hair. Every loved one deserves the same dignity.
Silmaril is a New Zealand service, founded to make memorial diamonds genuinely accessible to New Zealand families — without compromising on quality or care.
| Provider | Starting Price | Location |
|---|---|---|
| THE SILMARIL | NZ$3,280 | Auckland, New Zealand |
| Heart In Diamond | NZ$3,500+ | International |
| Algordanza | NZ$3,800+ | Switzerland |
| EverDear | NZ$4,000+ | International |
Competitor prices are approximate and converted from foreign currency. Correct as at May 2026.
The memorial diamond rests above the horseshoe, acting as a guiding star — a symbol of protection watching over you from above.
The diamond is cradled within the curve of the horseshoe — a warm, eternal embrace that holds your loved one close forever.
Yes. Hair contains carbon in its keratin structure. That carbon is extracted, purified, converted into graphite and grown around a diamond seed using HPHT technology. The result is a genuine lab-grown diamond.
For human hair, we recommend approximately 10 grams of clean, dry material. For pet fur, we recommend approximately 20 grams where available to provide processing margin. The technical minimum may be lower depending on sample condition and target carat.
Any hair containing keratin: human head, beard, or body hair, or suitable fur, mane, tail hair, wool or fleece from dogs, cats, horses, sheep, rabbits, and other pets. We treat all hair — human and animal — with equal care and the same One Guest, One Chamber protocol.
Diamond production is approximately 60 days from laboratory sample receipt to finished diamond. Silmaril's customer delivery estimate is approximately 80 days from receipt of a suitable sample to delivery of the finished jewellery. Customs or carrier delays may extend this estimate.
NZ$3,280 for The Guardian (18K white gold) and NZ$2,650 for The Warmth (18K yellow gold). Pricing is designed to be more accessible than many international options; compare current inclusions, currency, shipping, certification and setting choices before ordering.
Absolutely. Our One Guest, One Chamber protocol guarantees that your sample is grown in its own dedicated chamber and never mixed with another customer's material. Each sample receives a unique Life-ID when received by Silmaril.
Yes. It is carbon arranged in a cubic diamond crystal structure, not cubic zirconia or moissanite. It tests as diamond; specialised gemological equipment can identify its laboratory-grown origin.
Yes. GIA and IGI certification is available on request. Contact us to discuss certification options and current pricing before or after placing your order.
We target VS clarity or better and D–H colour. VVS can occur, but the final carat, colour and clarity are confirmed only after cutting and 4C grading.
Yes. We serve all of New Zealand. You send your prepared hair sample by post, and we return the finished piece by insured courier. You never need to visit us in person.
Any hair remaining after the carbon purification stage is carefully packaged and returned to you alongside your finished memorial diamond.
We are a New Zealand-based service. By managing the order from New Zealand and working directly with specialist lab partners in China, we reduce intermediary complexity and keep pricing transparent. Our pricing is designed to be accessible while keeping the same care, traceability and HPHT process for each loved one's material.
Yes. All orders are processed through Stripe, a globally trusted payment platform. We do not store card details. You may also enquire by email before committing to an order.
Currently we offer two signature designs. For bespoke setting enquiries, please contact us at [email protected] — we're happy to discuss what's possible.
18K gold contains 75% pure gold, compared with about 58.5% in 14K gold. At the same finished weight, 18K contains about 28.2% more pure gold than 14K, giving the setting a higher precious-metal content and material cost base.
You can view current pricing online or email us with any questions first. Once your order is confirmed, we provide sample preparation instructions, then manage the specialist China lab logistics after your sample is received.
A lock of hair. A lifetime of love. An eternal diamond.
Order The Guardian — NZ$3,280 Order The Warmth — NZ$2,650