Haute Joail­lerie: The Hottest Jewels to Take Over the Red Carpet

Designed with private high-net-worth clients in mind — think royalty and moguls — haute joail­lerie, or high jewelry, of late has been enhancing its allure, not to mention earning its price tags, by dazzling at premier Hollywood events. (With the Cannes red carpet about to kick off, look for festival sponsor Chopard to impress by adorning A-listers in pieces like its ruby chandelier earrings, made with 46.52 carats of pear-shaped rubies and 9.13 carats of dia­monds.)

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Naomi Watts at this year's Golden Globes donned Bulgari's all-diamond version of its Serpenti necklace, inspiring an unnamed client to purchase one in rose gold. Cate Blanchett's black Maison Margiela Oscar gown merely was a backdrop for the debut of a $400,000 Tiffany & Co. platinum-set turquoise, aquamarine and diamond necklace. Says design director Francesca Amfitheatrof, "I combined diamonds and gemstones in organic settings that suggest pebbles washed and marked by the sea." Released once a year — typically during Paris' couture week in July — high jewelry represents a house's ultimate technical prowess and DNA, so it's no accident the turquoise in Blanchett's necklace matches the iconic Tiffany shade of blue.

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Dior Joaillerie creative director Victoire de Castellane based the shape of a diamond-emerald cuff on the label's legendary 1947 Bar jacket. With Jessica Chastain named Piaget ambassador in January, the house's haute joaillerie is sure to round out her red-carpet looks in 2015: "It's the perfect finishing touch, that extra something special," Chastain tells THR. "I love the legacy of the brand, worn by Frank SinatraJackie Kennedy and Andy Warhol, to name a few."

1. Turquoise Sea

Worn by Blanchett, this platinum necklace is crafted with turquoise cabochons, bezel-set diamonds and aquamarines in a variety of cuts.

$400,000, Tiffany & Co., New York.

2. Ear-Marked Emeralds

Scarlett Johansson donned this cuff and matching stud of 18-karat rose gold, emeralds, diamonds, aquamarines and tourmalines at the 2015 Oscars. From Piaget's Mediterranean Garden high-jewelry collection.

Price upon request, Piaget, Beverly Hills.

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3. Raspberry Cascade

From Chopard's 2015 high-jewelry Red Carpet Collection.

Price upon request, Chopard, South Coast Plaza, Costa Mesa.

4. Cuff Love

Bar en Corolle Emeraude cuff, from the Archi Dior high-jewelry collection, with diamonds, pink and purple sapphires, emeralds, garnets and orangey-pink spinels.

Price upon request, Dior, Beverly Hills.

This story first appeared in the May 15 issue of The Hollywood Reporter magazine.