Australian Black Opal 12.09 Carats Pendant set in 18 Karat Yellow Gold with 72 x G-H/Vvs-Si1 Diamonds Weighing 1.810 Carats



Australia's Nationa Gemstone, Black Opal Pendants for Sale in Sterling Silver, 14 Carats, 18 Carats Yellow Gold, Platinum or Stainless Steel. With Valuation

Classified by the Opal industry as Natural Opal Type 1 – Black Opal is defined when the Opal is presented in one piece in its natural state apart from cutting or polishing and is of substantially homogenous chemical composition. Genuine Natural Australian Black Opal is Australia’s National Gemstone and the State Emblem of N.S.W., the “lucky gem from the lucky country”. A hydrated amorphous form of silica SiO2·nH2O consisting of spheres of silicon dioxide molecules arranged in regular, closely packed planes. And only found in Lightning Ridge, Australia. Guaranteed free of dyes and artificial colour. With Base tones ranging from Black (N1-N4) Black Opals with evidence of Iron Oxide and mined from Lightning Ridge that has a base body tone of (N5-N6) are today defined as “Dark Opals” (which in the past have sometimes been referred to as “Grey”, “Dark” or “Semi-Black”) and have been mined in fields such as Mintibie and found in limited quantities in various other Opal mining fields.

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