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Several celebrities have worn remarkable Tiffany & Co. jewelry on the Oscars red carpet, including Lady Gaga, Gal Gadot and Charlize Theron. But the available records do not establish an objective list of the ten most expensive celebrity-worn Tiffany pieces: Tiffany provides details about some jewels, while prices are mostly unpublished. The clearest reported estimate concerns the yellow-diamond necklace Lady Gaga wore in 2019, estimated at about $30 million by People, as reported by TIME—not a confirmed sale price or Tiffany valuation.
What “most expensive” means for these Tiffany appearances
Carat weight alone cannot establish which jewel costs more. Rarity, provenance, design and custom work can also affect value, and the sources documenting these appearances do not apply a shared valuation method. Tiffany’s event releases identify the jewelry and, in some cases, its materials or gemstone weight; they generally do not state prices.
The examples below are verified appearances, not a ranked top ten. Tiffany’s own retrospective records six Academy Awards looks from 2011 through 2021. Its 2022 Oscars release and other Tiffany pages document additional wearers, bringing the number of named examples here to nine without implying that they are the original title’s ten or the most expensive by verified price.
Verified celebrity appearances
| Celebrity and event | Documented Tiffany jewelry | Price evidence |
|---|---|---|
| Lady Gaga, 2019 Academy Awards | Tiffany describes a platinum necklace with a 129.54-carat Fancy yellow diamond, alongside cushion-cut and round brilliant diamonds. Tiffany’s Oscars retrospective | TIME reported an estimate of about $30 million, attributing it to People; this is not a verified sale price or Tiffany valuation. TIME’s report |
| Gal Gadot, 2020 Academy Awards | A Clara necklace in platinum with a central diamond of more than 11 carats. Tiffany’s Oscars retrospective | No price stated by Tiffany. |
| Charlize Theron, 2020 Academy Awards | A platinum pendant with more than 21 carats of diamonds. Tiffany’s Oscars retrospective | No price stated by Tiffany. |
| Andra Day, 2021 Academy Awards | Earrings in platinum and 18k yellow gold with Fancy Vivid yellow and white diamonds, plus Schlumberger pieces including a Two Bees ring and Cooper bracelet. Tiffany’s Oscars retrospective | No price stated by Tiffany. |
| Emma Stone, 2017 Academy Awards | Diamond earrings in 18k yellow gold and platinum. Tiffany’s Oscars retrospective | No price stated by Tiffany. |
| Natalie Portman, 2011 Academy Awards | Tassel earrings with violet gemstones. Tiffany’s Oscars retrospective | No price stated by Tiffany. |
| Rachel Zegler, 2022 Academy Awards | An Archives necklace, Tiffany Victoria bracelet, diamond earrings and diamond rings. Tiffany’s 2022 Oscars release | No price stated by Tiffany. |
| Venus Williams, 2022 Academy Awards | Elsa Peretti High Tide earrings, Bone cuffs and a Wave five-row ring in sterling silver. Tiffany’s 2022 Oscars release | No price stated by Tiffany. |
| Anya Taylor-Joy, 2022 Vanity Fair Oscars party and later campaign | Tiffany documents her diamond jewelry at the party and later features her wearing Schlumberger and Blue Book 2023 high jewelry designs. Tiffany’s 2022 Oscars release; Tiffany’s high-jewelry page | No price stated by Tiffany. |
How much was Lady Gaga’s Tiffany necklace worth?
TIME reported that People estimated the necklace’s value at about $30 million. That figure is a secondhand estimate, not a confirmed transaction price or an official Tiffany appraisal. Tiffany’s retrospective describes the necklace as featuring a 129.54-carat Fancy yellow diamond. TIME’s report gives the historic Tiffany Yellow Diamond’s weight as 128.54 carats, so the sources differ on the stone’s carat figure; the reported dollar estimate should not be treated as a definitive value for a sale.
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What Tiffany’s high jewelry shows about craftsmanship
Tiffany’s Blue Book 2024 collection, Tiffany Céleste, draws on Jean Schlumberger’s celestial motifs. The house says its Iconic Star necklace took 1,556 hours to craft and describes its stones and components on the collection page. This is useful context for the labor involved in high jewelry, but it does not establish that a celebrity wore that necklace or what any of the event pieces above cost.
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