The contrast between geometric and organic shapes, and soft and sharp edges are nicely balanced while keeping it simple. Golden rectangle: a rectangle whose side lengths are in the golden ratio, 1:1.618. A distinctive feature of this shape is that when a square section is removed, the remainder is another golden rectangle; that is, with the same aspect ratio as the first. Square removal can be repeated infinitely. [Size] #7-#21 (US: 4 – 10, UK: H – U) Face: approx. 15.2mm (0.598”) x approx. 9.4mm (0.37”) Band width: approx. 3.2mm (0.126”) Band thickness: approx. 1.4mm (0.055”) [Material] Sterling silver [Finish] Polished [Shipping times] `In stock’ products will be dispatched within 2-3 working days, and ‘made to order’ items will be dispatched within 1-3 weeks depending on the product.