The Oscars 2019: The Best Jewellery on the Red Carpet 

Lady Gaga led a cavalcade of diamonds at the Oscars 2019, adorned with a Tiffany & Co. necklace last worn by Audrey Hepburn in 1962 and worth an estimated $30 million 

The Hollywood Hills in Los Angeles glittered with Tiffany & Co, Chopard and Oscar Heyman diamonds

Lady Gaga in Tiffany & Co.

Lady Gaga made Oscar history in a 141-year old Tiffany Diamond necklace, weighing 128.54 carats and worth an estimated $30 million. Charles Lewis Tiffany purchased the canary yellow diamond in 1878, following its discovery in the Kimberley Mines in South Africa. It is one of the largest yellow cut diamonds in the world and was last worn by Audrey Hepburn in 1961 for a Breakfast at Tiffany's publicity shoot.

Lady Gaga, who won Best Song for her performance of Shallow in A Star is Born, wore the extraordinary piece with complementing fancy vivid yellow and white diamond earrings and an Alexandra McQueen black dress – Hepburn would have certainly approved.

Billy Porter in Oscar Heyman

Not even a multimillion pound necklace could overshadow Billy Porter, who wore a plush velvet Christian Siriano tuxedo gown, with Oscar Heyman 20-carat diamond ring and a yellow diamond Gardenia brooch. Bravo Billy, bravo. 

Courtesy of @theacademy

Olivia Colman in Chopard

Olivia Colman, deserved winner of Best Actress for her depiction of Queen Anne in The Favourite, wore a Prada gown with a generous frosting of Chopard jewels. Read our interview with Olivia Colman HERE.

Original image courtesy of @theacademy

Glenn Close in Cartier

Glenn Close, Best Actress nominee, proved that style has no age by slaying on the red carpet in a lustrous gold Carolina Herrera gown and a trio of Cartier archival pieces. 

Yellow gold and diamond earrings, 1990; yellow gold, platinum and diamond ring 1970; Yellow gold and diamond ring, 1995, all Cartier Collection

Rachel Weisz in Cartier

Also in Cartier was Rachel Weisz, who topped her red PVC Givenchy gown with two antique brooches, worn as a seriously on-trend headpiece. 

Platinum and diamond brooches, Paris, 1903, Cartier Collection (image via @madamefigarogr) 

Gemma Chan in Bulgari

In a wafting Valentino gown of dreams, Gemma Chan wins our vote for Best Dressed at the 2019 Oscars. The Crazy Rich Asians star finished her hot pink look with a smattering of Bulgari gems. 

 (Image via @gemma_chan) 

Dame Helen Mirren in Harry Winston 

Red carpet veteran Dame Hellen Mirren also opted for striking pink, in a sherbet-hued tulle Schiaparelli couture gown with racy vertiginous heels and Harry Winston's Incredible Winston Cluster Suite, totalling more than 135 carats. 

Incredible Winston Cluster Diamond Necklace, 136.66 carats, set in platinum; Winston Cluster Diamond Bracelet, 79.08 carats, set in platinum; Winston Cluster Diamond Earrings, 22.02 carats, set in platinum (image courtesy of Harry Winston)

Marina de Tavira in Lorraine Schwartz

Marina de Tavira, nominated for her role in Roma, made the case for statement earrings in a pair of timeless swingers by Lorraine Schwartz, worn with a scarlet J. Mendel dress. 

Courtesy of @theacademy

Constance Wu in Swarovski Atelier

American actress Constance Wu, star of Crazy Rich Asians, wore Atelier Swarovski Create Diamonds and Genuine Topaz, weighing 7.52 carats and 94.52 carats respectively. The one-of-a-kind jewels took seven master craftsman more then 150 hours to create, worn by Wu with a Versace gown.

Original image courtesy of Swarovski

Chiara Ferragni in Pomellato 

Chiara Ferragni of Blonde Salad fame has been a Pomellato ambassador since 2017. To the Vanity Fair Oscars party, she wore a chain bracelet and earrings from the Iconica collection, rife with retro flair.

Iconica Earrings, £30,600; Iconica Bracelet £31,500, by Pomellato