Chalcedony is usually subject to a dye treatment which may not be permanent. Gently clean by rinsing in warm water and drying with a soft cloth. Certain stones may fade in light or heat.
Sapphire is commonly subjected to enhancement processes or treatments such as heating and diffusion. Gently clean by rinsing in warm water and drying with a soft cloth.
This item is electroplated with rhodium or finished with an e-coating. These finishes may wear off with frequent use. Ask a jewelry consultant for details.