I f you happen to be watching the 97th Academy Awards with a group of jewelry experts, a collective sigh of appreciation might have swept over the room when they spotted Gal Gadot ...

The piece, known as "The Historic 1939 World's Fair Necklace," is eclipsed only by the 128.54 carat Tiffany Diamond, which Tiffany & Co. does not offer for sale and has labeled as "priceless ...

The actress, a presenter tonight, is wearing a gold and diamond necklace by Angela Cummings for Tiffany & Co., circa 1980. Yes, this reflects an ongoing trend in archival jewelry on the red carpet ...