Natural bi-color sapphire (corundum) weighing 1.30 carats, displaying a rich combination of deep blue and yellowish green hues. The oval mixed cut enhances brilliance while highlighting the gemstone’s unique color zoning. Gemstone Details Gemstone: Natural Corundum (Sapphire) Variety: Bi-Color Sapphire Shape & Cut: Oval Mixed Cut Weight: 1.30 Carat Measurements: 7.10 x 5.53 x 3.65 mm Color: Deep Blue / Yellowish Green Transparency: Transparent Treatment: Heating present (LIBS-tested) Shipping Fully insured express shipping The seller: I am a third-generation gemstone and diamond dealer, a Graduate Gemologist and Accredited Jewelry Professional (GIA), and a Diamond Graduate (IGI & HRD). As a member of the Young Diamantaires, GIA Alumni, and SBD, I stay closely connected to the global community and currently serve as Secretary of the GIA Alumni Chapter in Antwerp. Combining family tradition with modern expertise, on Catawiki you’ll find carefully curated items offered for auction, providing excellent opportunities for both wholesalers and private buyers.