Thunderstorm - Australian black Opal 19.87 ct

Natural Black Opal cabochon with an unusual pattern

Opal origin - Australia

Opal measurements - 0.35 х 0.63 х 0.79 in / 9 х 16 х 20 mm

stone weight - 19.87 carats

ref No 11331

Worldwide shipping from Berlin, Germany.