2.8ct Oval Cabochon Grey Opal from Australia Orange Red - Red Orange 75 carats in an emerald

75 carats in an emerald cut cut — unheated

of dark tone

24 carats in an oval cut — unheated

Species: CorundumVariety: Ruby

96 carats in an oval cut — heated

2.8ct Oval Cabochon Grey Opal from Australia Orange Red - Red Orange 75 carats in an emeraldA multi coloured opal of 2. 80 carats in an oval cut unheated, from Australia, with some inclusions you can see. Opal's play of colour comes from microscopic silica spheres splitting light into flashes of colour. Gem Details Gem Type: Opal Number of stones: 1 Weight: 2. 8 cts Measurements: 13. 75 11. 81 2. 21 mm Shape: Oval Cabochon Transparency: Semi Translucent Clarity: N A Colour: Grey with Play of Colour Hue: Grey with Play of Colour Tone: 3 Light