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Several celebrities have worn extraordinary Tiffany & Co. jewels on the Academy Awards red carpet, but the available records do not establish a definitive list of ten or rank those pieces by price. Tiffany’s own event retrospectives document notable appearances; the best-known price figure, for Lady Gaga’s 2019 necklace, is a reported estimate rather than a confirmed sale price.
Why “most expensive” needs a qualification
Tiffany’s records identify what select celebrities wore and, in some cases, give gemstone weights and materials. They generally do not disclose prices. Carat weight alone cannot establish which piece was most expensive, and the documented examples do not share a common valuation method. The list below is therefore a guide to notable, source-confirmed Tiffany appearances—not a ranked top ten.
Notable Tiffany appearances at the Oscars
Lady Gaga, 2019
For the 2019 Academy Awards, Tiffany says Gaga wore a platinum necklace set with a 129.54-carat Fancy yellow diamond, alongside cushion-cut and round brilliant diamonds. TIME reported an estimated value of about $30 million, attributing the estimate to People; it is not a confirmed sale price or an official Tiffany valuation. TIME gives 128.54 carats for the historic Tiffany Yellow Diamond, a different figure from Tiffany’s stated weight for the necklace’s yellow diamond. Tiffany’s Oscars retrospective; TIME’s report.
Gal Gadot, 2020
Tiffany identifies Gadot’s necklace at the 2020 Oscars as a Clara design in platinum, centered on a diamond weighing more than 11 carats. The house’s description gives no price. Tiffany’s Oscars retrospective.
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Charlize Theron, 2020
Theron wore a platinum pendant with more than 21 carats of diamonds, according to Tiffany. That gemstone total is not a monetary valuation. Tiffany’s Oscars retrospective.
Andra Day, 2021
Tiffany says Day wore platinum and 18-karat yellow-gold earrings set with Fancy Vivid yellow and white diamonds. Her other pieces included Schlumberger designs: a Two Bees ring and a Cooper bracelet. Tiffany’s Oscars retrospective.
Emma Stone, 2017
Stone’s Tiffany look included diamond earrings in 18-karat yellow gold and platinum. Tiffany’s retrospective does not attach a price to them. Tiffany’s Oscars retrospective.
Natalie Portman, 2011
For the 2011 Oscars, Portman wore Tiffany tassel earrings with violet gemstones. The retrospective does not state their value. Tiffany’s Oscars retrospective.
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More documented names from the 2022 Oscars
Tiffany’s 2022 Academy Awards release adds several examples, though it does not claim they are among the most expensive celebrity-worn Tiffany pieces.
Rachel Zegler
Tiffany lists Zegler in an Archives necklace, a Tiffany Victoria bracelet, diamond earrings, and diamond rings. The release does not give prices for these pieces. Tiffany’s 2022 Oscars release.
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Venus Williams
Williams wore Elsa Peretti High Tide earrings, Bone cuffs, and a Wave five-row ring in sterling silver, according to Tiffany. These are documented Tiffany pieces, but the release does not identify them as high jewelry or provide their prices. Tiffany’s 2022 Oscars release.
Anya Taylor-Joy
Tiffany documents Taylor-Joy wearing diamond jewelry at the 2022 Vanity Fair Oscars party. The house later featured her in a high-jewelry campaign with Schlumberger and Blue Book 2023 designs. Those records establish separate appearances and campaign imagery; they do not identify a specific campaign jewel as an Oscars-worn piece. Tiffany’s 2022 Oscars release; Tiffany’s Blue Book high-jewelry page.
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What the numbers can—and cannot—tell you
| Celebrity and occasion | Documented detail | Price evidence |
|---|---|---|
| Lady Gaga, 2019 Oscars | Tiffany describes a 129.54-carat Fancy yellow diamond in the necklace. | About $30 million is a secondary reported estimate attributed by TIME to People; not a confirmed sale price or Tiffany valuation. |
| Gal Gadot, 2020 Oscars | Clara necklace with a central diamond over 11 carats. | No price stated in Tiffany’s retrospective. |
| Charlize Theron, 2020 Oscars | Platinum pendant with more than 21 carats of diamonds. | No price stated in Tiffany’s retrospective. |
| Other appearances listed above | Tiffany provides select descriptions of designs, materials, or collections. | No comparable valuation stated in the cited Tiffany releases. |
These figures describe different things: a central stone, the diamonds on a pendant, or a necklace’s yellow diamond. They are not directly comparable measures of total value. A price ranking would require consistent valuations for each complete piece, which the cited records do not provide.
High jewelry craftsmanship is context, not proof of a celebrity appearance
Tiffany’s 2024 Blue Book collection, Tiffany Céleste, draws on Jean Schlumberger’s celestial motifs. Tiffany says the Iconic Star necklace took 1,556 hours to craft and describes its stones and components. That detail illustrates the design and labor associated with a high-jewelry collection; it does not establish that one of the celebrities above wore that particular necklace. Tiffany’s Blue Book 2024 page.
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