Item Type: BLACK OPAL IS RARE AND TO FIND BLACK OPAL CRYSTAL WITH THESE MAGICAL COLOURS IS SO RARE

ORIGIN: LIGHTNING RIDGE, AUSTRALIA

OPAL Size: 28X 21 X7MM

UNTREATED

Weight (Carats): IN HEADER

Colour :UNUSUAL AND RARE HUES AND OPAL CRYSTAL HAS BLUE BASE BUT FLASHES SUNBURST REDS TO SUNSET FIRE

Pattern : BROADFLASH

Number of pieces: AS PER IMAGES

Accuracy of picture :

+ More Bright Accurate Less Bright

Comments :

Brightness Rating, 1 Dullest to 5 Brightest : 4 BRIGHTNESS

++++++ 1 2 3 3.5 4 4.5 5

Opal body tone as recommended by Australian Gemstone Association Ltd : N2

+

Base of opal (bottom) :

+ + Full opal Clean back Some Sand Majority Sand

Cabochon :

+ Low Medium High Definitions

Convert Weight : 5 Carats = 1 Gram Covert Size : 6 mm = 1/4 inch (approx)