Australian Dark Opal 1.25 Carats Loose (Un - Set) Gemstone 12x6x4mm
Australian Dark Opal 1.25 Carats Loose (Un - Set) Gemstone 12x6x4mm

Australian Dark Opal 1.25 Carats Loose (Un - Set) Gemstone 12x6x4mm

SKU: 20375522

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$68.00
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Australian Dark Opal 1.25ct. Loose set in Unset 12x6x4mm Australian Dark Opal is Natural Gem Opal from Lightning Ridge in N.S.W., Mintabie and in some instances at Coober Pedy Australia. It is called Dark Opal because it has a base tone in the caused by black or grey iron oxide in the Opal base tone which registers as N5(10)-N6(14). This is a part of the colour bar that is often cut to be displayed on the surface of the Opal. The color bar or the play of colour of Australian Black Opal comes in all the colours of the rainbow with red being the rarest and most expensive. Australian Dark Opal s with Gem colour and a recognisable pattern are arguably the number one rarest commecially available gemstones found worldwide and are arguably 5,000x rarer than Diamond. https://vimeo.com/556998099

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