Method for producing a highly refractive composite gemstone, and product

摘要

A method for providing a protective coating and enhanced optical qualities to a gemstone. The method includes coating a first portion and a second portion of a gemstone with TiO2 doped with calcium oxide (TiO2+). The TiO2+ coated gemstone is next coated with a diamond like carbon (DLC) coating. The gemstone may be synthetic or natural. The composite gemstone, having been coated with both TiO2 and DLC, exhibits high refractivity and enhanced wear resistance and color.