Natural bi-color sapphire (corundum) weighing 1.35 carats, displaying an attractive combination of intense blue and yellowish green hues. This oval mixed-cut gemstone offers good brilliance and a unique color zoning, making it a distinctive collector’s stone. According to the ALGT report (page 1), the sapphire shows no indications of heating, enhancing its desirability. Minor oil in fissures is present, a common and reversible trade practice. (Details based on the ALGT certificate .) Gemstone Details Gemstone: Natural Corundum (Sapphire) Variety: Bi-Color Sapphire Shape & Cut: Oval Mixed Cut Weight: 1.35 Carat Measurements: 8.04 x 5.54 x 3.24 mm Color: Intense Blue / Yellowish Green Transparency: Transparent Treatment: No heat; minor oil in fissures 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.