This is a natural solid lightning ridge black opal with bright multicolour. No Cracks, untreated. Body tone: N3; Brightness: 3.5/5 Weight: 0.95cts size(mm): 9.95 X 5.98 X 2.45 Watch Video Video will open in a new window Using the eBay App? Paste link into a browser window: [isdntekvideo]