The largest black opal weighs 11,340.95 carats (2,268.19 grams; 80 oz) and measures 2,450 × 1,460 × 527 mm.
This 2.3Kg Opal Is the Largest Black Opal in the World
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Posted in futurism
The largest black opal weighs 11,340.95 carats (2,268.19 grams; 80 oz) and measures 2,450 × 1,460 × 527 mm.