The central element of this 18ct white gold necklace is undoubtedly the tanzanite, a precious stone that has captivated the world with its intense violet-blue colour, often described as 'twilight blue'. Discovered in 1967 in the Merelani hills of Tanzania, this gem is a thousand times rarer than diamond, which makes it a treasure coveted by collectors and jewellery lovers. In this piece, the tanzanite is presented in a round cut, a classic shape that enhances its brilliance and allows light to refract within it, creating a wonderful play of sparkles. Around the tanzanite, like a halo of light, is a halo of diamonds, carefully selected for their purity and brilliance. These diamonds, of a crystalline white, not only provide extra luminosity to the piece, but also enhance the beauty of the tanzanite, creating an elegant and sophisticated chromatic contrast.