Star Sapphire Ring, 38.50 Carats

A coveted star sapphire displays a powdery blue hue in this Art Deco-period ring. The six-pointed star at its center is the result of a phenomenon called asterism, which occurs when tiny needle-like titanium dioxide, or rutile, fibers form within the sapphire, creating what appears to be the rays of a star when viewed under a single, concentrated light source. Weighing approximately 38.50 carats, the fascinating gem is joined by diamond accents in its platinum setting.