Ten years ago, opal dealer Mark Tremonti heard that an exceedingly rare black opal had been unearthed in Lightning Ridge, the remote mining region in the Australian Outback. He quickly flew to the ...
The world’s finest uncut opal, a 998-gram gem called the Fire of Australia, has gone on permanent public display for the first time since its discovery more than 60 years ago. Valued at more than $675 ...
In this article, we’ll list the most expensive gemstones in the world and discuss their rarity. You can skip the details and read 5 Most Expensive Gemstones in the World. Gemstones are naturally ...
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