Burma Star Sapphire - blue - oval - 19.2x14.2mm - 19.76carats
A rare stone indeed as this star sapphire has been cabbed on both sides and each side shows a star. Translucent body with nice 6 point star.
FYI-Star sapphires usually have six ray stars, but twelve ray stars are also known. Rarely, when sapphires are cut in a cabochon style, you can see a cat's eye effect. This effect displays a thin band of light down the center of the stone and is known as chatoyancy