Jeff Bezos engaged to Lauren Sanchez 4 years after MacKenzie Scott split

Signed, sealed, delivered.

Amazon founder Jeff Bezos is engaged to girlfriend Lauren Sanchez, Page Six has exclusively reported.

The 59-year-old businessman — who is the world’s third-richest man with a net worth estimated at $140 billion — purportedly popped the question to the TV presenter, 53, before recently jetting off to Europe.

The couple is in the South of France for the Cannes Film Festival, where they have been hitting the star-studded party circuit and staying on Bezos’ $500 million yacht with a mermaid resembling Sanchez adorning the prow.

The loved-up couple went public with their romance in 2019, shortly after announcing they had divorced their respective spouses.

Bezos announced the end of his 25-year marriage to wife MacKenzie Scott in 2019, the same year that Sanchez split from Patrick Whitesell, to whom she had been married since 2005.

Bezos and Scott have four children together, including Princeton grad son, Preston, 23.

Sanchez and Whitesell have two teenage children together. The brunette beauty also had an older son from a previous relationship with ex-NFL tight end Tony Gonzalez.

Bezos and Sanchez have been inseparable since going public with their romance, becoming red carpet regulars.

Rumors have been swirling for months that the pair are set to be wed, mostly due to speculation about a heart-shaped ring Sanchez wears.

In an interview with WSJ. Magazine earlier this year, Sanchez gushed over her billionaire beau, saying: “He’s so happy, he inspires me every day, he makes me a better person every day; he’s the most loving human I know.”

Sanchez also explained that she and Bezos were working on mixing their respective families to create a big, blended clan.

“My greatest example is the relationship I have with my eldest son’s father, Tony,” she told WSJ. “I learned how to co-parent with him, so I have more experience than Jeff might have. Tony and his wife are my best friends.

“That took about five years, but we always communicated,” she continued. “I’m not saying that being best friends with your ex is the end-all be-all. My son looks at me, and he’s like, ‘I’m the luckiest boy in the world because I can have Thanksgiving with both my parents and they don’t have to be married.’ ”