Pillar 01
The SOSNA Guarantee Layer
The operational foundation of every SOSNA Exchange transaction.
Seven institutional guarantees enforced through admin review, hash-anchored evidence, custody documentation, settlement controls and immutable audit history. Not a marketing badge — a working trust layer.
100% Authenticity Guarantee
100% garance pravosti drahokamu
Pillar 01
Certificate Match Guarantee
garance shody kamene s certifikátem
Pillar 02
Insured Custody Guarantee
garance pojištěné úschovy v režimu SOSNA Vault Custody
Pillar 03
Blockchain-Anchored Verification
Blockchainově ukotvené ověření
Pillar 04
Listings reviewed
0
Fully guaranteed
0 / 0
Latest Merkle root
No ledger root yet
The SOSNA Guarantee Layer
A new global standard, guaranteed.
Every gemstone listed on SOSNA Exchange passes through seven institutional guarantees — the operational foundation of the platform, not a marketing badge.
Pillar 01
100% Authenticity Guarantee
100% garance pravosti drahokamu
Pillar 02
Certificate Match Guarantee
garance shody kamene s certifikátem
Pillar 03
Certificate Verification Guarantee
garance ověření certifikační dokumentace
Pillar 04
Laboratory Report Authenticity Verification
ověření pravosti laboratorního reportu
Pillar 05
Delivery Guarantee
garance dodání kamene kupujícímu
Pillar 06
Seller Payout Guarantee
garance výplaty prodávajícímu po splnění podmínek
Pillar 07
Insured Custody Guarantee
garance pojištěné úschovy v režimu SOSNA Vault Custody
+ Layer
Blockchain-Anchored Verification
Daily Merkle roots of certificates, custody records and audit events anchored to a public blockchain — tamper-evident history without exposing personal data.
What SOSNA Exchange guarantees
Authenticity, custody, settlement.
Pillar 02
Certificate match between the physical stone and certification.
Pillar 03
Verification of certificate documentation prior to publication.
Pillar 04
Laboratory report authenticity according to available verification tools.
Pillar 05
Delivery process — controlled coordination and confirmation.
Pillar 06
Eligible seller payout — released only after delivery, inspection and conditions are met.
Pillar 07
Insured custody for stones held in SOSNA Vault Custody.
What SOSNA Exchange does NOT guarantee
A clear legal boundary.
Investment returns
Future appreciation
Resale profit
Liquidity
Financial performance
Market price growth
SOSNA Exchange is a marketplace operator. SOSNA Exchange is not a bank, escrow provider, payment institution, securities platform, investment platform or regulated financial service. All payments flow through SOSNA Gems Investments Inc. as marketplace settlement.