Description

 

Item Specifics

Item Type: NATURAL UNTOUCHED BLACK OPAL ROUGH
Origin : LIGHTNING RIDGE

Opal Size : 25 X 12 X 8 MM
Treated/Untreated : UNTREATED
Weight (Carats) : 8.50 CTS

Colour : BLUE COLOURS

Pattern :

Number of pieces : 1

Accuracy of picture :

	+
More Bright	Accurate	Less Bright

Comments :

Brightness Rating, 1 Dullest to 5 Brightest :

			+
1	2	3	3.5	4	4.5	5

Opal body tone as recommended by Australian Gemstone Association Ltd :

+

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)

READ THE OPAL PLUS STORY HERE