One stone. $100 million.
One certificate: $10.
The Serendipity Sapphire — Guinness World Record.
Gübelin Gem Lab certified. BBC. New York Times.
100,000 certificates. Starting at $10.
Founder's Certificates are digital collectibles bundled with a digital ebook. They are not securities, investment contracts, or legal ownership of the Serendipity Sapphire.
Covered by the world's most respected press. Certified by the world's most respected institutions.
Round 1 — Genesis
$10 per certificate
99,153 left
847 / 100,000 claimed
Price rises to $25 when Round 1 closes
The simplest thing in the world.
I own the Serendipity Sapphire. The world's largest star sapphire.
Certified. World record. Worth up to $100 million.
And I'm giving away a piece of it. To anyone who wants one.
You sign up. You get a digital ownership ticket — permanently linked to you.
Not transferable. Not sellable. Yours.
The ticket gives you access to a community, to courses, and to a vote on what happens to this stone next.
And if we eventually build the legal structure for real fractional ownership — your ticket is first in line.
No catch. No credit card. No crypto knowledge needed.
Just your name and email to create a free bonuz account.
400 million years ago,
this began forming in the earth.
[Stone asterism photo]
Deep beneath what is now Sri Lanka, under pressure no human technology can replicate, corundum crystals spent four hundred million years aligning.
In July 2021, workers digging a well in Ratnapura — Sri Lanka's “City of Gems” — hit something they had never seen.
The Serendipity Sapphire. Named for the only word that fits.
503.2 kilograms. 2.55 million carats. Displaying asterism — the six-pointed star effect — across its entire surface. Not one star. Multiple. Moving. Alive under light.
Immediately certified by Gübelin Gem Lab in Zurich — the world's most respected gemological authority — as a completely untreated, natural star sapphire aggregate. No heat. No intervention. Pure.
Recognized by Guinness World Records as the largest sapphire aggregate ever certified. February 2022.
Today it lives in Dubai, near the Burj Al Arab — under the care of its guardian.
And now, for the first time, a community will own a piece of it.
Gübelin Gem Lab
Natural Star Sapphire Aggregate · Untreated
Report #21110064 · Zurich · 6 Dec 2021
Guinness World Records
Largest Sapphire Aggregate
503.2 kg · 11 Feb 2022 · Verified in Zurich
The math is simple.
The Serendipity Sapphire is estimated to be worth up to $100 million.
(BBC. New York Times. Wikipedia. Gübelin certified. Guinness verified.)
Exactly 100,000 Founder's Certificates will ever be issued. No more.
$100,000,000 ÷ 100,000
= $1,000 per certificate
at full symbolic value
Round 1 price: $10
We cannot promise you $1,000.
We can promise you the certificate, the community, the vote, and the journey.
The rest depends on what we build together.
Your piece. Your certificate.
Yours forever.
Every person who purchases a certificate receives a Serendipity Sapphire Founder's Certificate — a digital collectible permanently bonded to your identity.
A Piece of the Stone
Your certificate represents a fragment of the world's largest star sapphire. Soulbound — it cannot be transferred, copied, or sold. It is yours alone.
Real Education. Now.
Immediate access to a curated course library: gemstone valuation, real-world asset ownership, and the future of fractional investing.
Your Vote. Your Voice.
Certificate holders vote on what happens to the stone. Exhibition? Long-term hold? Private sale? The community decides. Your certificate = your say.
First Rights on Phase 2
When real fractional ownership becomes available — certificate holders convert first. At the original value. Before anyone else gets in.
What does “soulbound” mean?
Your certificate is mathematically locked to your wallet. It cannot be sent to another wallet, listed for sale, or transferred. This isn't a limitation — it's a guarantee. It's yours.
Three steps.
Zero complexity.
Choose Your Certificate
Free community tier or paid Founder's Certificate. From $10. USDC or ETH on Base.
Send Payment
Send USDC to the treasury address. Or sign up free with bonuz. Takes 60 seconds.
Receive Everything
Ebook delivered. Certificate PDF generated. Soulbound dNFT minted to your wallet. You're in.
People who own a piece of the world's
largest star sapphire:
847
Where this goes.
PHASE 1 — NOW
Community Building
Campaign, community management, professional stone photography + video. Free ownership tickets. Courses. Community. First votes.
PHASE 2 — WHEN THE COMMUNITY IS READY
Stone Elevation
Multiple certified appraisals. Professional custody (bonded warehouse, Dubai). Insurance at full appraised value. Legal structure preparation. Ticket holders convert to real fractional shares.
PHASE 3 — THE COMMUNITY VOTE
Community Decides
Certificate holders vote on the stone's future path: Museum loan — provenance increases value. Financial instrument — bonded warehouse as collateral. Private sale — community votes to accept or hold.
PHASE 4 — THE OUTCOME
Whatever comes, you're inside it.
Majority wins. Journey documented publicly. Certificate holders informed first. Early ticket holders receive the best terms of any outcome. Always.
The guardian.
[Matthias with the stone]
Matthias Mende has been the guardian of the Serendipity Sapphire since its arrival in Dubai. He does not describe himself as an owner — he calls himself a steward of something that chose to be found.
“This stone found me the way it found the earth — through patience and serendipity. I don't own it. I guard it. And in return, it guards me.”
This campaign is his decision. Not a company's. Not a platform's. A person choosing to share something extraordinary with the world — before the world has a chance to see it properly.
Frequently asked.
Yes. The Serendipity Sapphire is certified by Gübelin Gem Lab (Report #21110064) and holds the Guinness World Record for the largest sapphire aggregate at 503.2 kg. It has been covered by BBC, The New York Times, and The New York Post. It is currently in Dubai. You can book a private viewing at serendipitysapphire.com.
You receive a beautifully designed digital ebook about the stone, a personalized Founder's Certificate PDF, a soulbound ERC-721 NFT on Base Mainnet, and community access including voting rights on the stone's future.
For the free tier, no — bonuz creates a wallet for you automatically when you sign up. For paid certificates, you send USDC or ETH from any EVM wallet (MetaMask, Coinbase Wallet, Rabby, etc.) to the treasury address displayed on this page.
Your certificate NFT is permanently locked to your wallet. It cannot be transferred to another person or sold on a marketplace. It is yours alone — which is exactly the point.
No. Founder's Certificates are digital collectibles sold as part of a digital product purchase (ebook). They do not constitute securities, investment contracts, or legal claims of ownership. No financial return is promised. The community roadmap is aspirational. Phase 2 (real fractional ownership) will be structured with full legal compliance when the time comes.
In Phase 2, certificate holders who have upgraded to real fractional ownership participate in sale proceeds proportionally. Phase 1 certificate holders get priority access to Phase 2 at the original entry value.
Yes. Private viewings are available in Dubai by appointment. Visit serendipitysapphire.com for session details and booking.
The campaign is built on bonuz — a self-custodial Web3 platform based in Dubai. The stone is personally owned by its guardian. bonuz provides the wallet infrastructure. The guardian provides the stone.
A 400-million-year-old wonder.
Your piece of it.
Starting at $10.
Claim your Serendipity Sapphire Founder's Certificate.
Ebook + Certificate + Soulbound dNFT. Delivered instantly.
Free tier also available. No crypto knowledge needed.
Serendipity Sapphire Founder's Certificates are digital collectibles sold as part of a digital product purchase (ebook). They do not constitute securities, investment contracts, equity interests, or legal claims of ownership over the Serendipity Sapphire. No financial return is promised or implied. The community roadmap is aspirational and subject to change. All sales are final.