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This document discusses different types of rings, including engagement, wedding, and promise rings, which are typically made of gold, white gold, or diamonds. It also covers ring styles, components, settings, and surface treatments used in ring manufacturing and design. Common styles include knife edge shanks, half round bands, and flat bands. Settings like claw, tube, channel, tension, and pave are used to hold stones like diamonds. Lost wax casting is discussed as a surface treatment process.Read less