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 brilliant 3. 0mm wide lab-created blue sapphire eternity band. This sterling silver band features appealing textured edges and is polished to a brilliant shine. Add some extra sparkle with 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.