30x22mm Oval Cabochon CAB Flatback Semi-precious Gemstone Ring Face (Purple Sea Sediment Jasper & Pyrite) Cabochon Size: Approx 30x22mm ( 1.17 x 0.86 inches ) Thickness: Approx 6 to 8mm Weight: Approx 5g to 9g / pc You will receive the similar item as picture shown the sea sediment jasper is colored,Larvikite Picasso jasper is natural stone