This pretty Art Deco eternity ring is tremendously elegant on its own, or a great addition to a stacking set. Measuring exactly 2.1mm in width with a 1.7mm rise off the finger, and numbering almost 100 years since its creation, it certainly does a good job of demonstrating the timeless chic of classic black. Decorated with a tremendously Deco pattern on both top and bottom, it's pleasing from every angle, and though it's not hallmarked, it tests as sterling. Please don't hesitate to ask if I can provide any additional information.