4.3CT 100% Natural Black Lightning Ridge Opal Facet Rough Specimen YPW3820
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It was wet when taking the photos.The stone will be like the wet one after polished.
Quantity 1P Origin Australia
Weight 4.3ct Treatment None at all Gem Type 100% Natural Opal
Shape As picture
Refractive Index - Size 17x9x7mm
Specific Gravity - Color Play of color
Purpose It is ready to be made into a gorgeous piece of fine jewelry, specimen, collections or gifts! Tips Australian Lightning Ridge Opal is with the best quality, the minimum production and the maximum space of appreciation among all the opals in the world.
First of all, black opals refer to valuable opals with black, dark blue, green or gray colors as well as play of color. The colors of black opals are more brilliant than those of white opals.
Further more, the black opals from Lightning Ridge of Australia are with the best quality in the world.
Secondly, it has higher hardness than those African opals, and brighter colors.
Meanwhile, black opals from Lighting Ridge produce very small amount, but has great fame and large space of appreciation.
Last but not the least, the jewelries made from black opals of Lighting Ridge are of the highest value.
At present, after several years of mining, it is increasingly difficult to find new black