It is dated between 1930 and 1933. As with the Tiffany Diamond, the rare appearance of this necklace in public grants this red carpet Grammy’s moment an immediate place in the jewelry history books.

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 ...