From Tall Trees Studio
Black Opal from Lightning Ridge.
Australian black opals are the rarest type of opal found as a result can fetch the highest price per carat than any other opal currently found in the world. Black Opals rarity is caused by the phenomenon of dark to black underlying body tone or potch from black clay, which helps to intensify the brightness of the color bar. On the body tone scale, black opal will sit between N1 to N4.
Measurements:
11.95mm long x 4.6mm wide x 2.3mm thick
0.95 Carats
Grading:
N4 Black Tone
B3 - Bright
Black Opal from Lightning Ridge.
Australian black opals are the rarest type of opal found as a result can fetch the highest price per carat than any other opal currently found in the world. Black Opals rarity is caused by the phenomenon of dark to black underlying body tone or potch from black clay, which helps to intensify the brightness of the color bar. On the body tone scale, black opal will sit between N1 to N4.
Measurements:
11.95mm long x 4.6mm wide x 2.3mm thick
0.95 Carats
Grading:
N4 Black Tone
B3 - Bright