GemsVerified is an independent gemstone trade intelligence platform built and operated in London by Zaffirro Ltd. It helps buyers research gemstone dealers, origins and trade practices through a sourced register whose records and verification status are presented separately. The directory covers dealers across international gemstone centres and includes information about the stones they offer. Buyers can describe a stone through GV Match, which routes enquiries to suitable dealers, and explore origin pages linking dealers with gemstone deposits, alongside an A-to-Z gemstone catalogue, buying guides, a glossary and research resources.

The platform’s GV Score is calculated from available evidence, including verification, certification practice, disclosure, reputation, responsiveness and trade standing. GemsVerified says payment, membership and sponsorship do not increase scores, and missing evidence is excluded rather than treated as a negative result. Its other resources explain laboratories and reports, gemstone equipment, and experiences such as mines, museums and courses. Planned trade tools include GV Auctions and the GV Market Index.