Add a bit of antique-inspired style to your custom fine jewelry when you choose a Harro Gem custom antique square cushion cut moissanite gemstone. This special vintage moissanite stone offers classic cushion cut sparkle with a unique antique twist. A shape like this is ideal for anyone who loves the look of a cushion cut stone but wants a bit of vintage inspiration. These Harro moissanite stones make excellent engagement rings and can also be used for earrings, pendants and more. Choose from 10 different custom-cut sizes, ranging from 5.5 millimeters by 5.5 millimeters to 11 millimeters by 11 millimeters.