2.50ct LIGHTNING RIDGE NATURAL Australian Natural BLACK OPAL

SIZE: 17.6x8.3mm and 2.3mm thick

GEM TYPE:  NATURAL BLACK OPAL OPAL, NOT a doublet/triplet

COLOR: MULTICOLOUR

BODYTONE: N3

BRIGHTNESS: 4.5 OUT OF 5

SHAPE:  FREEFORM

PATTERN: BROADFLASH

ORIGIN:  LIGHTNING RIDGE, NSW, AUSTRALIA

TREATMENT:  NONE