The Alexandrite ring Often described by gem aficionados as emerald by day, ruby by night, alexandrite is the very rare color-change variety of the mineral chrysoberyl. That is why the color of Alexandrite changes under different lighting conditions.The versatile limited edition dynamic duo can be worn separately or stack them as stacking ring for exploring those new cafe around the city together or dressed up for that upcoming Dinner, Date, or Party. Have this color change Alexandrite ring pair it with a vampy red lip to release your charm.DETA