Estimated CostWait until you hear about Mariah Carey & James Packer's engagement ring if you thought Kate Middleton's was pricey when you started reading this story.

In 2016, she received a world-record ring from her then-boyfriend, Australian billionaire investor and businessman James Packer. A 35-carat emerald-cut platinum diamond with two exquisite, tapering baguette diamonds makes up the iconic ring. Carey's long-time friend and jeweler Wilfredo Rosado designed it, and it has more carat weight than Beyoncé and Kim Kardashian's rings combined!

When the celebrity news outlet E! Online asked her about her engagement, the professional diva quipped that the ring was "so hefty I can't lift my arm up!"

Unfortunately, the engagement was short-lived, as the pair called it quits just 10 months later. Carey insisted on keeping the ring at the moment, and why wouldn't she?

Estimated Cost: $10 million

Although Elizabeth Taylor was no stranger to an engagement ring or two, her iconic Elizabeth Taylor & Richard Burton engagement ring comes in second. The Hollywood actress was married ten times in all, with eight marriages and seven divorces. Taylor was even widowed once, so she wasn't exactly blessed with love.

Her engagement to Welsh actor Richard Burton resulted in the world's most expensive ring. The Elizabeth Taylor Krupp diamond is a 33.19-carat Asscher-cut gem with a desirable D color and VS1 clarity. Burton paid $307,000 (about £1.7 million in today's money) for the diamond at an auction. In 1968, shortly after presenting it to Taylor, it was turned into a ring.

It was dubbed the Elizabeth Taylor diamond for a long time and was considered to be the iconic actress' favorite jewel. During her estate's auction after her death in 2011, the stone sold for an incredible $8.8 million (£6.62 million). The Krupp diamond is currently worth $9.25 million (about £6.66 million) after accounting for inflation.

Did you know? Richard Burton never gave Taylor an official engagement ring during their two marriages. He gave Elizabeth an emerald Bulgari brooch when he proposed, which she pinned to her wedding gown. They married in 1964, and four years later, she was presented with the Krupp diamond. Taylor's engagement ring has long been known as such.

Estimated Cost: $9.25 million

The Russian tennis star has kept her relationship with musician Enrique Iglesias under wraps since the early 2000s. Her engagement ring, though, is difficult to overlook.

Anna Kournikova was given an 11-carat champagne and cognac pear-shaped diamond ring in 2004 that was reported to be worth between $2.5 million and $6 million (between £2.5 million and £6 million in today's money). The pink-colored center gem is surrounded by trillion-cut diamonds from the Argyle mines in Western Australia.

Her now-husband, who is known for his love ballads, also gave Kournikova a $5.4 million (about £4 million) radiant-cut canary yellow diamond, which has been seen on her finger during tennis matches.

The yellow-colored Anna Kournikova & Enrique Iglesia's engagement ring is now valued at about $7.5 million (£5.4 million), making it one of the world's three most expensive engagement rings.

Estimated Cost : $7.5 million

When Jay-Z proposed to Beyoncé in 2007 with a stunning 18-carat emerald-cut diamond ring, he truly put a ring on it. It is one of the most expensive engagement rings ever.

Lorraine Schwartz designed the ring, which has a solitaire setting with a split-shank platinum band. Given the singer's numerous platinum albums, the sort of band is appropriate!

BK's massive jewel - Beyoncé & Jay-Z engagement ring is thought to have cost more over $5 million and is currently valued at roughly $6.04 million (£4.4 million). The ring features micro-pavé diamonds and has been the inspiration for a number of recent celebrity engagement bands.

Perhaps you are unaware: Lorraine Schwartz was not involved in the design of Beyoncé and Jay-wedding Z's bands. Instead, the celebrity pair got identical 'IV' tattoos on their ring fingers. On April 4th, 2008, they married, and they were both born on the fourth day of their respective birth months.

Estimated Cost: $6.04 million

To be honest, with so many engagement rings, it's no wonder that Jennifer Lopez has been on this list several times. There are five in all.

In 2019, professional baseball star Alex Rodriguez proposed to her with a stunning 15-carat emerald-cut diamond ring set on a platinum band. The gem is said to have cost at least $1 million and could be worth up to $5 million (£3.7 million).

Although the exact specifics of the ring have not been revealed, there has been a lot of conjecture in the media.

Jennifer Lopez & Harry Winston's engagement ring was a rare blue 8.5-carat diamond ring, valued at $4 million at the time. Taking inflation into account, this gem is now worth roughly $5.5 million (£4 million) at the time of writing, making it more valuable than Rodriguez's ring.

Estimated Cost: $5.5 million

Hotel heiress and socialite To date, Paris Hilton has received four engagement rings. She's currently engaged to venture capitalist Carter Reum, but we're not interested in the ring he got her.

Let's go back to May 2005, when Paris Latsis proposed with a 24-carat canary-cut ring that cost $4.7 million (about £3.9 million today). Latsis offered the Simple Life star with a choice of 15 engagement rings, each including diamonds from renowned jewelers such as Tiffany and Harry Winston.

Estimated Cost: $4.7 million

The Oscar winner's engagement ring is almost as well-known as she is. After meeting at the Cannes Film Festival the same year, Prince Ranier III of Monaco proposed to Grace Kelly during the Christmas season of 1955.

After a year of romance, Prince Rainier III, Prince of Monaco, proposed to Grace Kelly in 1956. Prince Rainier proposed with a ring made from two family heirlooms, which formed interweaving diamond and ruby circlets. Prince Rainier also handed Kelly a second engagement ring, which she may wear out, because this ring was part of Monaco's sovereign jewels. Cartier created the engagement ring, which contained a 10.47-carat emerald cut perfect diamond. Grace Kelly & Prince Rainier III's engagement ring was said to have cost over $4 million at the time.

Kelly has been a longstanding admirer of Cartier jewelry since filmmaker Alfred Hitchcock introduced her to the brand.

Estimated Cost: $4.06 million

Vanessa Bryant received a $4 million ring from basketball star Kobe Bryant in 2003, which she wore with her wedding ring. Raffi custom-designed the 8-carat Vanessa Bryant & Kobe Bryant engagement ring, which incorporates a unique natural purple diamond.

Due to the basketball player's adultery, Vanessa Bryant filed for divorce in 2011. In 2013, the pair reconciled and remained together until Kobe's unexpected death in a helicopter accident in 2020.

Vanessa is renowned for being a very secretive person, therefore nothing is known about their relationship or the Raffi ring. Because the late basketball star was charged with rape just two weeks before purchasing the ring, it is sometimes referred to as an "apology ring."

Estimated Cost: $4 million

Kanye West picked a desired 15-carat diamond made by famous celebrity jeweller Lorraine Schwartz when he proposed to Kim Kardashian in 2013. The ring has a perfect Type IIa cushion-cut stone with the desirable D color grading.

Kim Kardashian & Kanye West's engagement ring is set on a delicate, exquisite pavé band encrusted with brilliant diamonds. The ring is said to have cost Kanye West up to $4 million (about £3.3 million in today's money). This is a minimal price to pay for an impurity-free Type IIa diamond that ranks among the most chemically pure gemstones. Kanye did well, in a nutshell (for once).

Kim Kardashian received a second engagement ring from West in 2016, which became the focus of public attention after she was stolen the same year at Paris Fashion Week. Robbers held the model and entrepreneur at gunpoint and took jewelry worth an estimated $10 million from her hotel room.

Estimated Cost: $4-$8 million

Alexa Dell proudly flaunted her 12 carat emerald cut diamond set in a pavé halo on social media. Her rich father Michael is the founder and CEO of Dell Technologies.

The heiress, whose father is reported to be worth $23.5 billion and is the world's 37th richest man, couldn't disguise her joy, captioning a video of the brilliant diamond, 'He did excellent.'

And it's no surprise she's pleased with the efforts of her partner Harrison Refoua, given the ring's estimated value of $3 million.

'A 12-carat diamond engagement ring would likely start at $500,000, but could easily cost several million dollars dependent on its cut and brightness,' said Hamish Shephard, Founder of Bridebook.co.uk, the top wedding planning software and website. This engagement ring is most likely worth between $2 and $3 million.'

The Alexa Dell & Harrison Refoua engagement ring was delivered to the art collector and branding expert over a candlelit supper on the beach at her father's hotel, The Four Seasons in Kona, Hawaii.

Estimated Cost: $3 million