Please keep an eye on our site as we will be continuing to list many more opals. Items can be held up to 5 days. If you have any questions please feel free to ask. Thank you for looking &. The item "OPAL SOLID RARE ROUGH AUSTRALIAN NATURAL BLACK VERTICAL LAYING COLOUR GEM STONE" is in sale since Tuesday, September 10, 2019.This item is in the category "Jewellery & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Other Loose Gemstones". The seller is "99centopals" and is located in goolwa. This item can be shipped worldwide.