Kate Middleton’s Engagement Ring: The Most Expensive Among Prince Charles and Prince Harry’s Partners

The Duchess of Cambridge, Kate Middleton, reportedly has the most expensive engagement ring among the partners of Prince Charles and Prince Harry.

According to the Sunday Express, her stunning sapphire ring with diamonds was a family heirloom that once belonged to Prince William and Prince Harry's mother, Princess Diana.

After Prince Charles gave the ring to Princess Diana in 1981, the jewelry would have cost over $38,000.

But taking into account inflation, the ring would have been priced over $135,000.

Since the engagement ring was used to propose to Middleton, its value has increased to over $400,000.

On the other hand, Meghan Markle's engagement ring, which was sourced out from Botswana, could be priced at $200,000, according to Michael Fryd, the CEO of Diamond Pro.

A three-carat diamond like that should cost around $200,000.

Although the diamond qualities of us non-royal folk usually go with would allow us to get a similar-sized diamond for about $80,000, he said, Markle's engagement ring featured a huge diamond from Botswana as its centerpiece.

Markle's engagement ring also included smaller diamonds taken from one of Princess Diana's jewelries, making it priceless.

”There is no way for me to put value on the whole ring, having diamonds from the royal collection that Princess Diana wore makes the ring priceless,” Fryd said.

Meanwhile, Camilla Parker-Bowles' engagement ring came from Queen Elizabeth II's massive jewelry collection.

The huge staple in jewelry features an Art Deco design and a modest gold wedding band, Grant Mobley, a gemologist and director of Plukinac, told Express.

Mobley estimated that the approximate five-carat large emerald-cut center diamond flanked by six baguettes in Art Deco pattern and platinum setting would be worth around $225,000.

If all of the estimates for the three engagement rings are correct, this could only mean that Middleton's ring is the most expensive one.