This large Australian light opal cabochon weighs 117.85 carats.
Small play-of-color flashes of orange and green predominate in a pinfire pattern, with spots of a more muted blue over a grayish bodycolor.
An opal might display a single color, two or three colors, or all the colors of the rainbow.
Opal displays background color in addition to play-of-color.
Clarity and Transparency With an opal, clarity is its degree of transparency and freedom from inclusions.No matter the color or combination of colors, play-of-color must be vivid to command a high rating.