But over 90% of the world's opal comes from Australia. And a lot of the black opal is found here, at Lightning Ridge. It's located on the edge of the Outback, with a population of just over 2,000 ...

This is when the real value of the gem is determined ... making it one of the world's most expensive gemstones. Over 90% of black opals come from Australia, but they aren't easy to find.

Australia's gold, silver, bronze medal count at Paris 2024 | How much are Australian Olympians paid? Here is everything you need to know about the Australian Opals vs Nigeria, including the tip ...

Australia's gold, silver, bronze medal count at Paris 2024 | How much are Australian Olympians paid? Here is everything you need to know about the Australian Opals vs Canada, including the tip-off ...