Images of coloured diamond jewellery made In the world of diamonds, colored diamonds stand out in their unique dazzling beauty, deep-reaching hues, and eyecatching rarity. In the world of fancy color diamonds, Rachminov Diamonds stands out. Rachminov has gained international recognition in this specialty niche, and continues to innovate owing to constant attention to the latest cutting and fashion trends. The Mass Appeal of Coloured Diamonds Although coloured diamonds are very rare, they are increasingly attracting mass appeal. This appeal is mainly due to the discovery of millions of brown diamonds at Rio Tinto’s Argyle mine in Australia.