Joey King is engaged, and her unconventional ring could have cost $150,000

• Joey King announced her engagement to director Steven Piet via an Instagram post on Tuesday.
• She also shared photos of her unique ring, which features an elongated diamond set horizontally.

Joey King is the latest celebrity to get engaged and showcase her stunning diamond ring on Instagram.

The 22-year-old actor, known for her roles in "The Act" and "The Kissing Booth" franchise, took to Instagram on Tuesday to announce that she's engaged to director Steven Piet. She also shared photos of the unique engagement ring that her fiancé proposed with.

According to Apeksha Kothari, the COO of diamond search engine Rare Carat, King's jewelry features a four-carat, "very elongated" oval-cut diamond. The modified cut, which is often referred to as a "moval" shape, is one that combines the styles of marquise-cut diamonds with those that are oval in shape.

"Given the uniqueness of the design, that would only add to the value," Kothari said. "I would estimate the retail value at $150,000."

Kothari noted that both the diamond's cut and the ring's overall design are both "very unique" and "one of a kind."

"The diamond is set east to west rather than the traditional north to south, and the design evokes traditions from the Art Deco era." she said. "It's an antique-inspired ring with a modern flair to it."

King tagged jeweler Mociun in her post, seemingly to signify that the company designed her ring. Representatives for Mociun did not immediately respond to Insider's request for comment.

In her post's caption, King kept the focus on her relationship, writing that Piet proposed to her on February 2.

"I never knew happiness could be so powerful that it can take the air from your lungs, overwhelming every part of you that you can't help but feel your eyes well from the undeniable joy," King wrote. "I never knew that a person's presence and heart could feel like a real home."

"I never knew love could be so unquestionably beautiful," she continued. "I never knew until you. The date was 2/2/22 when you asked me to marry you and made me the luckiest lady alive. I love you more than an Instagram caption could ever do justice. Hanging out with you forever sounds like a real dream, so let's do it."