Exceptional natural color-changing sapphire from Sri Lanka, weighing 9.30 carats, with a beautiful Cornflower Blue hue that shifts to violet under warm light. Certified by Guild Gemlab as “Cornflower Blue” with Velvety Effect and no indication of thermal enhancement, confirming its natural, untreated origin. The stone exhibits a soft, velvety glow reminiscent of fine Kashmir sapphires, with delicate light diffusion that enhances its overall depth and visual appeal. An extremely rare combination of Cornflower tone, velvety texture, and color-change phenomenon makes this gem a true collector’s piece. Details: • Species: Natural Corundum • Variety: Natural Color-Changing Sapphire • Weight: 9.30 ct • Dimensions: 13.47 × 9.98 × 8.05 mm • Shape: Oval • Cut: Modified Brilliant • Color: Intense Blue changing to Violet • Treatment: No indication of thermal enhancement • Origin: Sri Lanka • Certificate: Guild Gemlab No. 3110144716 • Trade Name: Cornflower Blue • Special Comment: Velvety Effect