LARGE CALIBRATED OPAL order #Awg 54

order TYPE: WHITE OPAL
ORIGIN:COOBER PEDY,AUSTRALIA
WT. 6.30 CT.
SIZE: 18 X 13 X 5 MM.TALL CALIBRATED
COLOR/PATTERN: PER PHOTOS
BRIGHTNESS 2.3/5 DOWNING'S CHART
SATURATION: MEDIUM
DIRECTIONAL? MODERATELY #AWG 54