ANDROMEDA Ring with Jade Product Specifications Material: 18k Gold and High-Performance Titanium Shape Memory Alloy Stone: Jade Gold Finishes: Available in YELLOW Gold, WHITE Gold, ROSE Gold, or BLACK Gold Available Sizes: XS | S | M | L | XL (shape-memory technology allows slight adaptation to nearby sizes for a flexible fit) Collection: PERFECT Shape Memory Technology Our signature shape memory alloy allows the jewelry to gently flex and adapt. While the initial size may vary slightly depending on how it is formed, the technology enables the piece to gradually mold to your personal size and shape over time, giving you a perfect, comfortable fit. The shape-memory technology also allows the ring to adapt slightly to nearby sizes, ensuring a flexible fit. Size Diameter US Ring Size XS 15.7 mm ~5 S 16.7 mm ~6.5 M 17.7 mm ~7.5 L 19 mm ~9 XL 19.6 mm ~9.5 *Shape-memory technology allows slight adaptation to nearby sizes for a flexible fit. Our spiral rings wrap around the entire finger, creating a different fit. For this reason, they fit approximately 3 sizes smaller than a standard ring. For example, If you normally wear size 13, choose size 16. If you normally wear size 16, choose size 19. For your order The size 13 spiral rings you ordered will fit customers who normally wear size 10. The size 16 spiral rings you ordered will fit customers who normally wear size 13.