Stone Type: Natural Solid black Opal. Body tone: N4; Brightness: 3/5. Stone Size(mm): 19.89 x 12.56 x 2.82.The item "4.31cts natural solid Lightning Ridge black opal, green blue color see video" is in sale since Friday, November 27, 2020. This item is in the category "Jewellery & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Opal\Black Opals". The seller is "preciousopal" and is located in South Eastern, ACT. This item can be shipped worldwide.