Description Emerald Cut Wide Band Cathedral Pre-notched Ring Mounting Made for an Octagon Emerald Cut (must have cut corners). This mounting is pre-notched for ease of setting. All mountings are stamped with purity stamp. Cast in the USA using our Recycled De-ox Premium Metals. Listing is for mounting only, gemstones sold separately. Mounting Specifications Available Ring Sizes: 5-11 Band Width (in 10x8mm): 3.2mm at shoulder, 2.0mm at bottom Band Thickness (in 10x8mm): 1.8mm at shoulder, 1.5mm at bottom