Few Interesting Factors That Make Australian Opal Unique

Australian opal is one of the expensive gemstones. They are unique and known for displaying a multitude of colours. The precious stones from the shores of Australia are considered to be of the highest quality. Brilliance of colours and the different hues present in the stone decide the price and quality of the stone.

The brighter the colours in the stone, the costlier it is. Presence of few colours could fetch a high price, while others would not, especially in jewelry making. Red is considered the most valuable and rarest while blue is the most common shade. Red is followed by orange, while green comes just before blue.

Australian opal comes with a dark base, thus all the colours appear brilliant. This is mainly because the dark and contrast background enhances the colours.

The patterns of colours also decide the price of the stone as it would decide the cub-type or in classifying the gem. A white opal with a speckled pattern would be less valuable while a pitch-black opal with broad flashes of reading and orange would be considered as a high-quality stone. A good quality opal would show the vibrant colours in dull light as well.

Particular structure opals are very rare and are very expensive. The formation of structure and presence of nearby materials make the value of the opal. Large gemstones are exceptionally uncommon and their price could be very high.

Opals are less hard than diamonds and other precious stones but are more durable these precious stones. Another uniqueness of the Australian opal is non-porous and so do not absorb water.