This is a stunning ring featuring a natural black opal. You can enjoy the beautiful play-of-color (shimmering blues, greens, reds, etc.) that differs with each stone. The large main stone is approximately 10x14mm and shines like a rainbow depending on the angle of the light. The material is S925 sterling silver, precisely set by a craftsman. The ring is free size, so it can be worn by various people. Enjoy the one-of-a-kind brilliance. Thank you for viewing.