MINERAL TYPE: Spinel COLOR: Steely BlueWEIGHT: 4.37 CTSMEASUREMENT: 11X9X5 MM.LOCALE: Tunduru, Tanzania This 4.37 ct. blue spinel from Tunduru, Tanzania measures 11 × 9 × 5 mm and shows a steely blue color.TUNDURU BLUE SPINEL 4.37 CTS. 11X9X5 MM.SKU: ATSIR#90$300.00PriceQuantity*Add to CartBuy Now