Opal 17,000 carats – The largest and most expensive opal in the world to date.

The 17,000-carat opal discovered in South Australia in 1956 is the largest and most expensive opal in the world to date. The opal was dubbed the “Olympic Australis” to celebrate the Melbourne Olympics that year. and has been in perfect condition in Sydney since 1997.
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Post time: Apr-19-2022