This week, a museum in Sydney, Australia announced that they have received the opportunity to exhibit what is believed to be the finest Opal ever unearthed. Named the 'Virgin Rainbow', this astounding gemstone was dug up by miners in the desert town Coober Pedy of South Australia. It has been valued at over $700,000 USD as its beauty exceeds that of any other opal ever discovered. The exhibition, titled Opals, will open on September 25, 2015. "It's of unequaled quality.