About SOSNA Exchange
A USA-based global marketplace for certified gemstones.
SOSNA Exchange is operated by Sosna Gems Investments Inc. (USA) — a marketplace built around the SOSNA Guarantee Layer. Trust anchors across Miami, Prague and Dubai DMCC.
Brand architecture
- SOSNA Exchange — public master brand and certified gemstone marketplace.
- SOSNA Vault — custody and insured storage layer.
- SOSNA Verify — certificate verification and authentication.
- SOSNA Source — private sourcing service.
- SOSNA Trade Desk — B2B and high-value transaction support.
- SosnaGems.com — existing retail / own-inventory e-commerce brand.
- SOSNA Gems Investments Inc. — legal entity.
What SOSNA Exchange is — and is not.
SOSNA Exchange is a marketplace operator. It is not a bank, escrow provider, payment institution, securities platform, investment platform or regulated financial service. All transactions settle through SOSNA Gems Investments Inc. as marketplace settlement.
SOSNA Exchange guarantees authenticity, certificate verification, certificate match, laboratory report verification (per available verification tools), the delivery process, eligible seller payout and insured custody where applicable. SOSNA Exchange does not guarantee investment returns, future appreciation, resale profit, liquidity, financial performance or market price growth.