This product is a stunning natural black agate gemstone ring set in sterling silver, with an opal secondary stone. The ring is of US size 7.5 and features an oval-shaped black agate stone, making it a unique and elegant piece of jewelry. Crafted in India, this ring is perfect for special occasions like Christmas, graduation, birthday, and Valentine's Day, adding a touch of beauty to any outfit. With a certification from Super Diamond, this ring is a high-quality piece that is sure to make a statement for both men and women.