Spider Queen with Rainbow Obsidian cabochon set in sterling silver . this ring looks great on a man or woman ,Stylish black and silver with a Renaissance lace wrapped oval that and Duke Or Duchess would flaunt with greatly . Still stylish today have that ring that will have everyone looking. Their is only the one so make it yours. The Obsidian cab is 16mm X 25mm X 7 mm with a deep green iridescent shimmer when exposed to a directional light source. This is set in a handcrafted sterling silver mount , with a spider "the weaver and teacher " on one side and a skull and bones on the other "the hunter and provider" the ring is size 8.5 total weight is 14.5 grams about 1/2 ounce.