For buyers 1. Register — create a free account and verify your email. 2. Browse gemstones — filter by gemstone, origin, treatment, weight, certification and more. 3. Bid or make an offer — place bids on auctions or make offers on catalogue listings where the seller accepts them. 4. Win — the highest valid bid at the close wins subject to any reserve. 5. Complete purchase — our team contacts you with the next steps. For sellers 1. Register an account. 2. Apply as a seller with your business details and verification documents. 3. Get approved by our team. 4. Submit gemstones with full disclosure of treatments and origin. 5. Sell through auctions or the catalogue.