L. J. West Diamonds, Inc. is a three-generation natural coloured diamond wholesaler based in New York, and was founded in the late 1970s by Larry West. Today, L. J. West Diamonds has established itself as one of the world's prominent houses for some of the rarest and most important exotic natural fancy colour diamonds to have ever been unearthed. This collection includes a vast colour spectrum of incredible rare pink, blue, yellow, green, orange and red diamonds, including the Tender-quality diamonds from the Argyle Diamond Mine.William is the managing director of L. J. West Diamonds AU Pty Ltd, a wholly-owned subsidiary of L. J. West Diamonds, Inc., and is responsible for the sales and marketing of L. J. West's collection of premium diamonds and the Scott West luxury jewellery brand to wholesale ateliers and manufacturers in the Asia-Pacific market.