Spinel Tunduru Color Shift Blue and Purple 1.69 carats

This round brilliant precision-cut 1.69-carat Tunduru Spinel is an exotic collector’s masterpiece, boasting a rich, vivid blue body color that dramatically shifts to purple under a incandescent lighting environment. This stone come from Tunduru, Tanzania alluvial deposits, and is fashioned into an optimized round brilliant cut. This stone explodes with a fiery brilliance that rivals fine sapphire. A few interesting parallel rutile needles visible under magnification and in image serve as a coveted feature this is 100% untreated and natural. This gem remains beautifully crisp at 10x magnification and is loupe-clean. An 8 on the Mohs hardness scale, makes this a durable, color-changing Tanzanian treasure tough enough for an everyday luxury engagement ring and perfectly engineered for a bespoke, legacy design.