Coloured gemstones are a $50B asset class with no public market — no continuous price, no fractional access. CaratShares fixes that: vaulted, lab-certified stones (GIA, SSEF, Gübelin, AGL) are tokenised into carat-level facets and traded 24/7 on an on-chain order book settled on Base. Sworn appraisers record NAV on-chain, holders govern custody and sales, and the physical stone is ultimately redeemable. Live demo — every mechanism working end to end.