Thin Enamel Stacking Ring in Grass GreenAdd a serious dose of rad to your ring stack: meet the Thin Enamel Stacking Ring in Green Grass. Add as much or as little color as you wish (we like a lot of color). This ring is made of solid sterling silver. Wear it solo or stack it with your favorite jewels. 92. 5 solid sterling silver Green enamel Dont know your size? Download our digital ring sizer here.