***The charm of Alexandrite is its ability to change color, mysterious and dazzling. June's birthstone, a gem that brings positive energy to the wearer.***- Metal: Solid gold(9K/14K/18K white/yellow/rose gold),925 sterling silver, platinum available - Main Stone: 7x10mm kite cut lab alexandrite - Chain: 16+2 inches. The chain can be adjustable to 18 Inches. - Can be personalized: Yes