There are many types of gems available in Australia, but the opal is the most precious gem. It is the national gem of Australia. There are different types of opals available in different sizes, shapes, colors and materials.
It can only be available in three states of Australia are New South Wales, Queensland, and South Australia. It has to pass from different processes to convert into a gem from an unturned stone. The opal has no size and shape. You can easily get the opal in Australia.
Well, the opal has no shape, but the south sea pearls are available with the perfect shape, size and surface. To get more information about it, you need to search on the internet and get the results. You can also compare the prices of both the jewelries from other websites and select one to get the best deal and good quality of product.
To get more details, visit at http://www.johnstonopals.com.au/