What a special piece this is. We can start with the 18K Omega gold chain, pure class and exquisite workmanship. Then the pendant, which can also be removed from the chain and used as a brooch. This amazing boulder opal has vibrant reds, blues, purples and a vivid green stripe running down its length. A very large 22ct stone with rich, vibrant colour from all angles. Adorned with two stunning diamonds and set in 18K gold, the amazing opal pattern is due to it being a 100 million-year-old fossil from the outback of Queensland, Australia.