From KOAT.com via Geology.com:
Jetter is talking about a 306 carat, black opal from Australia, buried in the earth for the last 400 million years. An Australian miner named Bobby discovered the stone and is now ready to share it with the world. He selected Jetter to create a one-of-a-kind piece of jewelry to sell, and then share the profits.
Thirteen years ago, Bobby retired from a long and hard career in the mining industry. He sold his tools and was about to call it quits, when someone handed him one last bucket of dirt. To his incredible surprise, Bobby saw something shinny. Turns out, it was one of the world's most rare, valuable and precious stones.
