One off Australian Opal from my personal collection, set in sterling silver cap, hung on black chord. This is a stunning piece of natural opal, with fire & flash when worn and moved. There are some natural pieces of brown bolder within, which only add to its beauty. The Black chord resembles black leather. I prefer this man-made chord, as it is much more secure. The length can be decided by the wearer, by knotting to length.
