"Mermaid" opal, pink spinel, and white diamond ring in 18k ... The opal is very much loved for its plays of light deriving from the amount of water it contains, and it is a stone that is said ...

Its first birthstone, opal, is known for its kaleidoscopic, shifting, multifaceted shades (courtesy of small silica spheres that refract light at many ... the stone (with pink and green being ...

The complex internal structure of opal diffracts light differently depending on which ... yellow, green, blue, pink, black, etc. The Virgin Rainbow is an opalized fossil, which means the shape ...