Largest black opal

Largest black opal
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Who
Dallas, Judith, Shannon, Jeffery and Ken Westbrook
What
2268.19/2450/1460/527 carat(s)
Where
Australia (Belmont .N.S.W Australia,)
When
04 July 2011

The largest black opal weighs 11,340.95 carats (2,268.19 grams; 80 oz) and measures 2,450 x 1,460 x 527 mm (96.45 x 57.48 x 20.74 in). It is owned by Dallas, Judith, Shannon, Jeffery and Ken Westbrook (all Australia). The black opal was found in Lightning Ridge, New South Wales, Australia.