Cat Wedding Ring Vintage 1.2ct Round Color-Change Alexandrite Agate Promise Ring Peekaboo Kitten June Birthstone Gift for Cat Lover/DaughterThe 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 DETAILS: Material : 925 Sterling Silver (Hypoallergenic, Nickel Free, Tarnish Resistant) Main stone : 7mm Round lab created Alexandrite Accent Stone : emerald and moss agate and moissanite Stone Cut : Round