This pendant is made of Sterling silver and is set with an Australian black opal from Lightning Ridge. The stone is quite unusual. It has a dark, almost black backgrouund with three distinct stripes of green and blue fire. The opal is 2.2cm long and 0.5cm wide with a weight of ca. 3.5 carat. To display the shape of this stone to its optimal advantage, I designed a relatively wide, Japanese style setting for it to counterbalance its length, which is nonetheless accentuated by its relatively long hanger. The entire pendant is 3.7cm long and 2.7cm wide. It is a substancial piece weighing 12.52 grams. The back is hallmarked for Edinburgh 2015. It comes with an 18″ Sterling silver snake chain and will be sent gift boxed.