Material: S925 Sterling Silver / Free Size (Adjustable) Colors: White Gold / Rose Gold / Yellow Gold Luxuriously crafted with natural black opal, which holds a flame-like brilliance within its deep black depths. Each time the angle changes, red, green, and blue shimmer vividly, emitting a fantastic beauty that seems to encapsulate the universe. Exquisite 925 silver craftsmanship by skilled artisans maximizes the stone's play-of-color. The free-size design provides a comfortable fit. This is an elegant piece that shines in both everyday and special occasions. ● This is a made-to-order product, and will be shipped approximately 10 business days (excluding weekends and holidays) after purchase. Thank you for your understanding. ● Cancellations and unauthorized cancellations are not accepted once the size has been confirmed after purchase. Thank you for viewing.