What is the rarest opal color?

Black opal is the most rare and highly valued form of opal, and has what is called a black (or dark) body tone. Black opals come in every colour of the rainbow. Their dark body tone makes the colours on the face of the opal appear rich and intense.

How many colors of opal is there?

Unlike any other gem, opals can display all the colours of the rainbow in an iridescent, moving pattern of red, green, blue, yellow, purple, aqua, pink, and any other colour you can imagine.

Which color opal is best?

The body colour of an opal is very important to its value. Opals with black body colour are more valuable than any other hue, for example blue, white, orange or colourless.

Why did my opal turn blue?

Chemical Composition Its water composition is also such a distinct property that causes opals to change in colour. Heat, humidity, sweat and contact in water can make the amount of water in opals fluctuate. When this happens or when your opal pendant loses or gains water, its colour changes.

What is the rarest opal pattern?

By far the most prized and rare pattern is the true Harlequin opal. This pattern is extremely rare and we use the terminology of true pattern, as some opals might just have one or two shapes like harlequin pattern but only in a small area.

What is the prettiest opal?

Considered to be one of the world’s most beautiful opals, “The Virgin Rainbow” is a 63.3mm Black Crystal Opal Belemnite Fossil in a ‘pipe’ shape. It Features gem quality colour, and is also said to glow in the dark.