Cannes 2026, gemstone chokers and diamond collars steal the spotlight

A carpet built for stones

At the Palais des Festivals et des Congrès on the Croisette, Cannes is behaving less like a film festival and more like a live catalog of how to wear gemstones now. Demi Moore opened in a sequinned Jacquemus gown with a Chopard five-row necklace set with heart-shaped diamonds totaling 226.34 carats, while Alia Bhatt made her Cannes debut in Amrapali Jewels’ Golconda Rosé necklace, packed with 168.27 carats of pink coral and more than 20 carats of diamonds. Isabelle Huppert gave the evening its sharpest emerald lesson in a Chopard floral cuff centered on a 51-carat Colombian emerald cabochon, proof that one strong stone can carry an entire look.

Why Cannes still sets the jewelry mood

The 79th Cannes Film Festival runs from May 13 to 24, 2026, and the city’s formal dress rules have made jewelry more important, not less. The 2025 ban on so-called naked dressing pushed the spotlight toward sculptural collars, cuffs, and necklaces that can do the work of a neckline, a sleeve, or a train. Chopard, the festival’s official partner since 1998, remains central to that conversation through its Red Carpet Haute Joaillerie collection, its annual Trophée Chopard for one promising actress and one promising actor, and its long-standing role as creator of the Palme d’Or.

The wider carpet only strengthens the point. Bella Hadid appeared in Chopard, Jane Fonda wore Pomellato, and Win Metawin Opas-iamkajorn brought Tiffany & Co. into the same frame, widening Cannes beyond one maison and one aesthetic. The festival also opened with a tribute to Peter Jackson, who will receive the Honorary Palme d’Or, a reminder that Cannes has been taking over the Croisette since 1946 and remains one of the most watched fashion stages in the world.

Emerald is the clearest birthstone story on the carpet

If there is one stone that translates cleanly from Cannes spectacle to real-world buying, it is emerald. Huppert’s 51-carat Colombian emerald cabochon has the kind of presence that makes a piece feel ceremonial without tipping into excess, especially when set as a floral cuff rather than a rigid collar. That is the smartest emerald lesson here: the stone does not need more decoration to feel important, it needs space, a setting that lets the color read cleanly, and a silhouette that frames the face or wrist without clutter.

For birthday jewelry, emerald works best when you let the stone lead. A slim emerald pendant for May feels intimate; a larger cabochon or a halo ring feels celebratory; a cuff or collar turns the stone into the entire statement. The Cannes version is unapologetically grand, but the styling rule is simple: pair a saturated green stone with clean fabric, restrained metalwork, and one clear focal point.

Diamond collars remain the most versatile luxury signal

Demi Moore’s Chopard necklace is a study in scale, but also in usability. The five-row construction, the white gold, and the heart-shaped diamonds totaling 226.34 carats create a bib effect that sits close to the neck and reads instantly as polished, even before the gown enters the frame. That is why diamond collars keep returning on red carpets and at weddings: they are neutral enough to work with white, black, ivory, or jewel tones, yet dramatic enough to feel like an event.

For readers building a jewelry wardrobe, a diamond collar is the safest big investment because it moves across occasions with the least friction. It can be bridal when paired with a clean neckline, milestone-gift worthy when the stone count and craftsmanship are strong, and formal enough for black-tie without needing color to carry the look. If emerald is the personality piece, diamond is the anchor that makes the rest of the wardrobe work.

Color is back, but precision matters

The wider Cannes carpet confirms that bold color is not returning as casual whimsy. It is returning as tightly edited, couture-level design. Alia Bhatt’s Golconda Rosé necklace, with 168.27 carats of pink coral and more than 20 carats of diamonds, is a perfect example: the coral supplies the mood, while the diamonds keep the piece from dissolving into costume. Philippine Leroy-Beaulieu’s Pomellato high-jewellery set, built around rare paraiba tourmalines, pushes the same idea in a cooler, electric register.

Chopard’s 2026 Red Carpet collection extends that logic across 79 creations, including a necklace centered on an 88-carat Royal Blue sapphire that cascades with sapphires, aquamarines, and diamonds. The message for buyers is useful and practical: when color is handled well, it is never isolated. It is supported by diamonds, balanced by metal, and shaped by a setting that lets the stone speak first.

How to translate Cannes into buying rules

The strongest red-carpet pieces offer a clear shopping brief. They show that the most wearable statement jewelry usually has three things in common: a named stone, a visible setting, and a silhouette that suits the neckline or wrist it occupies.

• For birthdays, choose a stone with a strong color identity, such as emerald, sapphire, or tourmaline, and keep the setting clean.

• For weddings, look for diamond collars or bib necklaces in white gold or other bright white metals, where the brilliance does the talking.

• For milestone gifts, prioritize proportion. A 51-carat emerald cabochon is Cannes scale; a smaller cabochon, or a single-row collar with a clear center stone, gives you the same sense of significance without the red-carpet volume.

• For contemporary wear, pair one statement jewel with simple clothing. A jeweled cuff or necklace should set the tone, not compete with ruffles, heavy embroidery, or busy prints.

The best part of Cannes this year is that it turns birthstone jewelry into something less fixed and more personal. Emerald reads like May, sapphire like ceremony, diamond like every important date that deserves to be remembered, and the carpet proves that a good stone is never just a symbol. It is a style decision, and when the cut, setting, and color are right, it becomes the whole story.