Giant Australian black opal from the Opalton mine Directly from my personal collection These opals are difficult to photograph, the piece is much more beautiful in person. Top Colors Natural Black Opal Rough Preformed (only the final polishing is missing) Australian, Opalton Top Colors Multicolor, Flash fire 288 cts - 57.6 grams (Huge piece) 61 x 49 x 12 mm about Sandstone matrix Treated Lamp Light Condition Wet Piece - The strong colors are seen from wet because the piece is rough the piece for sale is what you see in photos! please be careful with the description and measures COMBINED SHIPPING (if you buy more items in the same auction you only pay 1 shipment) Standard shipping ( 2-7 days for Italy ) ( 10-20 days for Europe ) ( 15-40 days for rest of the world ) if you want fast shipping, please contact me immediately after the auction win