As with the Tiffany Diamond, the rare appearance of this ... To see her subtle shift, compare the necklace Lady Gaga is wearing tonight to the Medusa necklace on view at the Tiffany Landmark ...

Keeping the focus on the stunning diamond necklace, Lady Gaga opted for a simple Oscars makeup look: bold eyebrows, soft ...

It's been 15 years since Lady Gaga made her Grammys ... swaths of fabric draping throughout. Gaga committed to the Vampire-chic bit with a Tiffany & Co. necklace from the brand's 1930s archive.

Lady Gaga is an intrepid fashion shape-shifter ... To complete her gown, Gaga chose over 100 carats of Tiffany & Co. diamond ...

and 50-carat pear shaped diamond drops. Her earrings weren’t the only standout jewelry moment of the evening—there was also ...

She capped off the look with an array of diamond jewelry by Tiffany & Co. Gaga confirmed ... Gabriel Attal during the Olympics. “He loves Lady Gaga, but he’s in love with Stefani,” a source ...