Description

Item Specifics

Item Type: SOLID NATURAL BLACK OPAL Origin :LIGHTNING RIDGE Opal Size : 30 X 20 X 5 MM Treated/Untreated : UNTREATED Weight (Carats) :18.02 CTS

Colour : GORGEOUS RICH GREEN FIRE THAT FLOWS TO ASTUNNING DEEP BLUE FIRE Pattern : BROADFLASH

Number of pieces : 1 Accuracy of picture :

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More Bright	Accurate	Less Bright

Comments : SUNSET ORANGE FIRE IS MORE BOLDER ON OPAL

Brightness Rating, 1 Dullest to 5 Brightest :

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1	2	3	3.5	4	4.5	5

Opal body tone as recommended by Australian Gemstone Association Ltd :

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Base of opal (bottom) : FULL OPAL WITH MAJORITY SAND

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Full opal	Clean back	Some Sand	Majority Sand

Cabochon :

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Low	Medium	High

Definitions

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