Kate Bosworth’s Diamond Ring Fuels Engagement Rumors

Over a year into their relationship, Kate Bosworth and Justin Long officially made their red carpet debut at the Vanity Fair Oscars party on March 12. Wearing a chic plunging gown by Monique Lhuillier, the “Blue Crush” actor smiled for the cameras with her hand on Long’s chest, offering a view of her massive diamond ring. Even though reps for the actors have not confirmed their engagement, it sure looks like the couple is headed towards the aisle.

On March 15, Bosworth seemed to reference the news on Instagram alongside film photos from the Oscars afterparty. Among a list of credits that included Long and her glam team to bring her beautiful look to life, she thanked her nail artist Ashlie Johnson for her “most important manicure to date.” Johnson also referenced Bosworth’s “new bling” in a post of his own, further hinting at an engagement.

Bosworth’s ring appears to be a classic, round-cut diamond set on a thin silver band. The sparkler is estimated to be about 10 carats and valued at $500,000, according to diamond expert Mike Fried, CEO of The Diamond Pro. “A diamond of this size is incredibly rare,” he told POPSUGAR. Bosworth has yet to share a close-up of the round-cut diamond, known as a traditional shape that never goes out of style.

The new accessory complemented Bosworth’s regal gown, which featured a black velvet corset and a floor-length pale pink skirt from the designer’s fall 2023 collection. Coincidentally, Lhuillier is known for her exquisite bridal wear, so perhaps the two are subtly offering a hint of collaboration in the future. Styled by Samantha McMillen, Bosworth finished the minimalist look with Cicada jewels, including a ring on her right hand and diamond earrings.

Long looked sleek in a black Berluti suit and tie, and was seen straightening out his rumored fiancée’s gown while drawing attention to her gorgeous ensemble. The couple appeared blissful as they shared kisses and stared lovingly at one another both on the carpet and inside the party. Get a closer look at the pair’s coordinating looks — and the giant diamond ring — in the photos ahead.

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