At Mayfair Gemstones, we supply a distinctive range of high-quality coloured gemstones to jewellers & designers either directly or via the Nivoda platform. We also supply a small number of established private gemstones collectors & connoisseurs. We allow clients to view gemstones online more clearly than ever before by using industry-leading macro videography • Mayfair Gemstones Ltd, 6 South Molton Street, Mayfair, London, W1K 5QF • Proud members of the National Association of Jewellers (NAJ).