Peru Green Opal Ring Size 8 1/2 set in sterling silver. Peru green opal is not highly polished but is an intense green like no other. So different and unique the ring is app. 1 1/4 inch long, 3/4 inch wide size measurements 8 1/2 but wears more like a size 9. You will receive the ring shown in a gift box. Click on the picture for a larger view.