A diamond brooch set with a cushion-cut yellow diamond once owned by Marie Antoinette displayed ahead...
A diamond brooch set with a cushion-cut yellow diamond once owned by Marie Antoinette is displayed during a press preview ahead of the upcoming auction "Royal jewels from the Bourbon Parma Family" at Sotheby's in New York City, New York, U.S., October 12, 2018. REUTERS/Mike Segar