G.M. Colours Ltd is long established and a highly respected firm of Gemstone Suppliers offering a reliable and trusted service sourcing high quality coloured gemstones and diamonds to the jewellery trade and private customers.

Operating from the world famous and historic ‘Jewellery Quarter’ Birmingham, the company is run by the Directors and our team of highly skilled experts, all of whom have a background in manufacturing, craftsmanship and design.

GM Colours Ltd is a member of the British Jewellery Association, Jewellery Quarter Association and World Gem Society.