It's not impossible for an emerald to be valued at $280 million. In 2017, a 794-pound emerald was found in Brazil and valued at $309 million:
However, in the ongoing litigation over the 2018 Camp Fire, PG&E has asked for proof that a married couple really lost a $280 million emerald when their home burned down. Their "Beleza Emerald" was described in court documents as a 500-pound "solid block of black schist and quartz with green crystals."
Aside from the immense value of the emerald, Market Watch notes a few suspicious factors:
While the Camp fire burned hot enough to melt aluminum — which has a melting point of 1,221 degrees Fahrenheit — emeralds start to degrade at temperatures around 1,800 degrees Fahrenheit
A Google search found no record of a "Beleza Emerald."
According to Realtor.com, the house in question was an 8-bedroom, 4,400-square-foot home in Paradise with an estimated value of $586,000 — raising further doubts that it contained a gem worth more than 477 times the price of the house.
In an effort to verify the claim, PG&E has requested proof of ownership such as photos of the emerald, or receipts for security precautions such as temperature control or employment of security personnel.
