Stackable expressions™ is a simple and stylish assortment of rings that can be worn together to express your style, your family and your personality. Add color to your look with a carved band framing your 4. 0mm cushion-cut aquamarine. This sterling silver ring is polished to a brilliant shine. Add additional stackable expressions™ polished or textured bands and diamond, message, or enamel rings. With stackable expressions™, it's your look, your way. Sterling silver rings cannot be resized after purchase.