Part of our in-house line that incorporates antique and vintage stones into new, minimal mounting of our own design. A midnight blue opal that flashes electric blue and a very unusual 19th century color-change sapphire are set opposite one another in platinum bezels over a knife-edge 18K yellow gold band. The sapphire shifts in color from violet-blue in outdoor lighting to vibrant purple in indoor lighting. One of a kind. Made in New York.