High-quality coral often receives a wax coating, while lower quality stones may contain a polymer resin or lacquer. Photo by Q C. Licensed under CC By-ND 2.0.
Opaque Orange Coral Cabochon in Ring
High-quality coral often receives a wax coating, while lower quality stones may contain a polymer resin or lacquer. Photo by Q C. Licensed under CC By-ND 2.0.
Article: Gemstone Coatings: CVD and More
Credit: Q C
| Gemstone | Coral |
| Natural or man made | Natural |
| Jewelry type | Ring |
| Gem State | Cabochon |
| Color | Orange |
| Transparency | Opaque |