Vintage, handmade Himalaya Quartz sterling 925 silver engagement ring featuring a natural, not-enhanced Ethiopian (Welo) opal with vivid multicolor play-of-color. Prong-set on an antique-style 1 mm sterling silver band, this boho, stackable ring showcases a pear 3x4 mm opal (stone options: oval 3x5 mm or 6x8 mm), eye-clean clarity, sizable in multiple sizes, total carat weight 9.