This pendant is set with an oval-shaped Australian black opal from Lightning Ridge. The stone is a fair size, 2.2cm long and 9mm wide and it weighs 6 carat. It is mainly milky blue with turquoise sparkles. I set it in Sterling silver with a slightly curved base and a modern, triangular shape. The entire pendant is 3.4cm long and 3cm wide. The back is hallmarked for Edinburgh 2017. It comes with an 18″ (45cm) Sterling silver snake chain and will be sent gift-boxed.