When choosing your opal or opal jewellery you will need to consider a combination of brilliance, pattern, colour, shape and size.

The brilliance of colour is of paramount importance. The more vibrant the colour, the greater the value of the stone will be. Good patterns of colour, combined with brilliance, have a significant effect on price. Broad patterns, or large flashes, are considered to be more valuable than pinfire and small types of pattern

Choose a colour that appeals to you. Red on black is the most valuable but there are many combinations including blue, green, orange, yellow, indigo and violet to choose from.

A stone with a domed surface will be more valuable than a similar stone with a flat surface.

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