Grace Kelly’s Granddaughter Announces Engagement to Basketball Player

Bettmann / Bettmann Archive Grace Kelly ’s granddaughter, Princess Alexandra of Hanover, is engaged.

The 27-year-old royal announced her engagement on Instagram on Sept.

11 with a sweet photo of her and her boyfriend of 10 years, entrepreneur Ben-Sylvester Strautmann.

In the selfie, Alexandra poses with Strautmann, 27, and smiles at the camera, showing off her ring, which features a 4.8-carat fancy yellow diamond her fiancé chose.

“Fancy” is a designation used for diamonds that are naturally colorful.

While consumers have historically prized clear diamonds, fancy diamonds are increasingly popular in engagement jewelry.

According to Tatler , the ring is a custom Antinori di Sanpietro in 18-carat yellow-and-white gold, with two colorless trillion-cut diamonds surrounding the centerpiece.

The ring is estimated at £150,000, roughly $202,000, according to Hello! .

Strautmann, a German native, is the founder of a digital agency and played basketball on Monaco’s youth national team in 2016.

The other photos in the post showed Alexandra’s ring in its box on the nightstand and in her hand while she did everyday things like eating and holding her dog, Eloise, a long-haired dachshund.

Alexandra titled the post “The marriage plot” with eight yellow heart emojis, and received many congratulations, including from the late Princess Diana’s niece, Kitty Spencer .

The couple grew up in similar circles and were first romantically linked in 2016, according to PageSix .

The ring reportedly features secret symbols of Rome, a city the newly engaged couple loves.

A motif under its setting is inspired by Rome’s public square, Piazza del Campidoglio, and the ring has inscriptions “Made in Italy” and “Antinori.” Alexandra is the daughter of Princess Caroline and Prince Ernst August.