This 3.58 carat round modified brilliant is a natural cuprian tourmaline – the copper-and-manganese-bearing variety that the trade refers to as "Paraiba" tourmaline regardless of country of origin – from the Mavuco district of Mozambique. The color is a clean, sky blue with a soft neon undertone that becomes more apparent as the stone catches light, rather than the deep saturated blue-green typical of the finest material from this locality. Clarity is exceptional for a cuprian tourmaline, a species that frequently carries visible inclusions even in fine specimens – this stone reads clean to the eye and shows excellent transparency throughout its generous size. In hand it's remarkably lively, with light traveling cleanly through the pavilion and returning as bright, even brilliance across the full face, a testament to both the material's quality and the precision of the cutting. Backed by an International Gemological Institute (IGI) Colored Stone Report confirming natural cuprian tourmaline.
