Windiam is a trusted, inter-generational diamond wholesaler with one mission – to help you grow your business. We source and deliver an extensive selection of stones to the leading brands, jewellery chains, and smaller boutique shops. Operating with a global network of local experts in all the major markets, we have Sightholder status with several of the world’s largest mines. In just 25 years, we have established a world-class reputation through our professional and personal approach. We leverage our expertise to turn rough into polished and offer large, high-quality stones at competitive prices.