Carry them
forward, in light.
A small lock of fur or a measure of ashes becomes a real, IGI-certified diamond — grown from their carbon, cut to our signature Eternity Cut, set in solid gold. The one you loved first, with you always.
Carbon is the
building block of life.
We turn theirs into a diamond.
We are all made of carbon — and so are diamonds. In the lab, we recreate the way diamonds form in the earth, using your companion’s carbon as the source. The result is not a symbol of them. It is them, made brilliant and forever.
The science behind your diamondChemically and optically identical to a mined diamond — because it is one. IGI-certified, every time.
Hair and fur are nearly half carbon, the building block of every diamond. A small lock is all we need.
Yours is grown alone in its own reactor, from their carbon. Never batched, never repeatable.
Real diamond growth can’t be rushed. We keep you updated at every stage of the journey.
Four gentle steps, and we’re with you for every one.
It begins with a free kit — no payment, no pressure. You decide when, or whether, to take the next step.
Request your free kit
We mail you a gentle, beautifully packaged collection kit. No payment, no pressure. When you’re ready, send back a small lock of fur, hair, or a measure of ashes.
We extract the carbon
In our partner lab, your companion’s carbon is carefully isolated and purified — the very same element that every diamond on earth is made of.
We grow the diamond
Using Chemical Vapor Deposition (CVD), we grow your diamond one atomic layer at a time — slowly, individually, never mass-produced.
Cut, set, and home
A master cutter shapes your diamond to our signature Eternity Cut, then sets it in solid gold or platinum. It arrives certified, insured-ready, and ready to wear.
Settings named for the ones we love.
Ready-to-personalize designs in solid gold and platinum — or start from scratch in our configurator.
The price you see is the whole price.
No quotes to chase, no surprises. A 1-carat Caro diamond starts at $1,900 for the loose stone — a fraction of what most memorial diamond companies charge for the same thing.
- from $1,900 (1 ct)
- IGI + traceability
- Included options
- from $80/mo
- $7,000–$20,000 (1 ct)
- Varies
- Often extra
- Limited
Loose diamond · Classic White · Eternity Cut
Every diamond carries a whole lifetime.
Mango
Golden Retriever · 14 years
“I opened the box and just gasped. It’s like his eyes are shining back at me. Every walk, every nap on my feet — it all came rushing back. I’ll cherish this forever.”
Biscuit
Tabby Cat · 18 years
“Other companies quoted insane prices for a tiny stone. Caro felt too good to be true — transparent, kind, and the diamond is more beautiful than I imagined.”
Cooper
Border Collie · 11 years
“Losing him gutted me. I collected his fur the week we found out. Caro walked me through every step — it was a huge part of how I healed.”
Pearl & Ed
Two bonded rabbits
“We wanted to honour both of them in one piece. They made us a toi-et-moi ring with a diamond for each. It’s the most us thing we own.”
“When our senior dog Dodo started slowing down, I kept asking myself what could possibly be worthy of her. A friend offered to grow a diamond from her fur — and it clicked. Caro is how more of us get to keep our beloveds close, and turn grief into light.”
Hana W. · Founder of Caro
Order your free collection kit.
Beautifully packaged, shipped worldwide, yours to keep. No payment, no obligation — just the first gentle step.