Natural Color Change Alexandrite (Chrysoberyl) This exceptional gemstone is a natural color-change chrysoberyl (Alexandrite), accompanied by an official AIGS Gemstone Identification Report. The stone exhibits the classic and highly sought-after alexandrite effect, changing color from yellowish green in daylight to purple under incandescent light. It is faceted in a cushion shape, offering excellent brilliance and an elegant appearance. A rare and collectible gemstone, suitable for fine jewelry or as a standalone collector’s piece. Gemstone: Natural Color Change Chrysoberyl (Alexandrite) Weight: 1.66 carats Shape: Cushion Cut: Faceted Color: Yellowish green (daylight) → purple (incandescent light) Measurements: 7.42 × 5.45 × 4.29 mm Treatment: None stated (natural color change) Laboratory: AIGS – Asian Institute of Gemological Sciences Report Type: Gemstone Identification Report Report Number: GF25110265 Date: 10 November 2025 Identification: Natural Color Change Chrysoberyl – Alexandrite Comments: The stone displays a change-of-color from yellowish green in daylight to purple in incandescent light.