Natural Bi-color Blue-Green Tourmaline Faceted Elongated Octagon. Weight: 1.88 ct Size: 13.03 x 5.57 x 2.32 mm Clarity: Transparent, eye-clean. Color: Blue to Green. Very rare color combinations with the perfect color distribution. Treatment: None. ALGT Belgium Certificate: Report no. 99064219. Top gem - Excellent fire, and luster. Very rare color combinations, not seen too often. Collector's, investor's choice stone. Don't miss it! Shipment with a reliable courier, will be trackable and insured. Duties and Taxes Buyer,s responsibilities. IMP: Please check the measurements from the text above to get a real idea of the stone. Pictures have been taken under white light and under natural daylight with magnification, intended to display as accurately as possible, but they may slightly vary.