We recommended 1920 by 1080 pixels screen resolution to view our opals images. 0.5ctred green blue flashy genuine lightning ridge solid black opal gemaob1391 item(s) need to be in their original condition. Origin & Type Lightning Ridge Solid Black Opal. This item is in the category Jewellery & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Opal\Black Opals.