An important cushion cut 16.85 carat Alexandrite Chrysoberyl, diamond, platinum and 18k pink gold custom made ring with Gubelin certificate. The color change phenomenon in “daylight” displays green color, and in incandescent light it displays as reddish-brown. The stone is set with four natural pink diamonds weighing 0.58 carats, in addition to another 2.36 carats of fine colorless full cut and cushion cut diamonds. Truly incredible!