Met Gala’s Most Expensive Jewellery: Isha Ambani’s $100 Million Cartier Necklace To Priyanka’s Bvlgari Diamonds

The Met Gala has long been a stage where couture meets spectacle, but if there’s one element that steals the spotlight, it’s the extravagant jewellery. Beyond the gowns and theatrics lies a glittering archive of some of the most expensive gems and jewellery ever worn on the Met Gala red carpet. These pieces blur the line between adornment and museum-grade treasure.

Here are some of the costliest Met Gala jewellery pieces that grabbed headlines over the past years.

Isha Ambani – Cartier Toussaint Necklace (2025)

Value: $100 million

Isha Ambani stunned with one of the most valuable pieces ever seen at the Met Gala—a Cartier Toussaint necklace featuring over 480 carats of diamonds, including a striking 80-carat centre stone. Inspired by a historic Cartier design once created for Indian royalty, the necklace stands out not just for its scale but for its deep heritage connection, making it one of the most expensive jewels ever worn at the event.

Emma Chamberlain – Cartier Choker (2022)

Value: $30 million

Emma Chamberlain wore a Cartier choker linked to the legendary Patiala Necklace, one of the maison’s most intricate creations. Since much of the original necklace has been lost over time, this piece carries immense historical significance, representing a rare surviving element of a once-grand royal commission.

Priyanka Chopra – Bvlgari Laguna Blu Diamond Necklace (2023)

Value: $25 million

Priyanka Chopra showcased the rare Laguna Blu diamond by Bvlgari, an 11.6-carat blue diamond known for its exceptional colour and scarcity. Originally set as a ring, the stone was reimagined as a necklace, allowing it to take centre stage and highlight its rarity and brilliance.

Rihanna – Bvlgari & Belperron High Jewellery (2023)

Value: $25 million

Rihanna embraced an unconventional approach by pairing high jewellery pieces from both Bvlgari and Belperron. While high jewellery is typically styled as a cohesive set from a single house, this mix reflected her signature fashion sensibility, bold, experimental, and intentionally layered.

Priyanka Chopra – Bvlgari Emerald Necklace (2025)

Value: $20 million

Priyanka Chopra also turned heads with a remarkable emerald necklace featuring a gemstone exceeding 240 carats. Emeralds of this size, combined with high clarity and rich colour, are extremely rare. Given their natural fragility, crafting and setting such a large stone into wearable jewellery requires exceptional precision, with the design allowing the gemstone to remain the focal point.

Gigi Hadid – Jacob & Co. Diamond Set (2021)

Value: $12 million

Gigi Hadid’s diamond set by Jacob & Co. stood out for its impeccable craftsmanship. Featuring over 100 carats of diamonds, the set achieved a seamless look through consistent colour and clarity across each stone—an achievement that significantly contributes to its high valuation.

Dua Lipa – Tiffany & Co. Lucida Star Necklace (2023)

Value: $10 million

Dua Lipa debuted the Lucida Star necklace by Tiffany & Co., a piece that subtly references the iconic Tiffany Diamond through its distinctive cut. As a first-time appearance on the red carpet, the necklace was positioned as a memorable and significant addition to the brand’s high jewellery legacy.