I just picked up this 13k gold and opal pendant for $10," they wrote in the post's caption. Commenters expressed their jealousy and congratulated the poster on the rare find. "How does it feel to ...

For Monica Rich Kosann, whose high jewelry collection, The Jewels of Nature, uses rare Australian black and crystal opals and Mexican fire opals, the answer was hiding in plain sight. Kosann ...

Emergences are rare events that occur at select times throughout each region's cycle and can introduce new resources into the environment for a limited amount of time. To find Genesis Opal ...