Though she ultimately never married Matt Bellamy, the musician did ask Hudson to be his wife with a classic 9-carat emerald cut diamond with a roughly $200,000 price tag.
When George Clooney said goodbye to his bachelor days for Amal, he bid them adieu with this $650,000 7-carat emerald cut stone set in platinum and flanked by tapered baguettes.
When billionaire mogul James Packer got down on one knee for Mimi, he did with this 35-carat rock flanked by baguettes set in platinum. What does the biggest celebrity engagement sparkler cost? According to reports, just $7 to $10 million.
When Ciara said "Yes!" to football pro Russell Wilson, she also agreed to a 15-carat emerald cut diamond—estimated to be worth around $2.5 million.
The Duchess of Cambridge's left hand bling has only gotten more valuable with time. After first adorning the ring finger of Princess Diana of Whales, the 12-carat sapphire surrounded by 14 diamonds later made it on Middleton's hand in 2014. By that point, it's worth had increased from $47,000 to a whopping $500,000.
Back when she was Mrs. Tom Cruise, Katie sported a 5-carat oval diamond surrounded by another six carats worth of diamonds. The stunning jewel cost an estimated $275,000.
Though Brad and Angie are currently on the outs, when they were happily married, the Oscar winner sported an emerald cut 16-carat diamond ring worth an estimated half-a-million dollars.
When it came to buying an engagement ring for his bride to be, Derek Jeter hit a home run with a round brilliant solitaire diamond ring packed with approximately four to five carats. While it's esteemed $350,000 to $450,000 price tag would have most grooms sweating, it was just what we'd expect from the former longtime Yankee captain.
Talk about a real life princess moment! When Adam Shulman popped the question to the Oscar winner, he was armed with a $150,000 6-carat sparkler.
Lopez, who is no stranger to engagement baubles, became the temporary owner of a rare blue 8.5 carat diamond thanks to former fiancé Marc Anthony. However, the reported $4 million sparkler wouldn't stick for long—the two divorced after seven years of marriage.
Before nearly 20 years of marriage to Michael Douglas, the British beauty accepted a $1 million rock with 10 carats of pure antique diamond.
The actress has sported plenty of stunning jewelry on the red carpet, but this $2 to $3 million 10-carat pink oval diamond from Ryan Reynolds is her biggest showstopper. Combined with the rock's bordering diamonds, the entire bauble equals out to almost 12 carats of ice.
The potential future First Lady became Donald Trump's right-hand woman with this huge $3 million 12-carat rock on her finger.
As the original example of stellar celebrity rings, the silver screen legend was given the iconic 33-carat Krupp diamond by her then-husband Richard Burton, which he bought at auction. Taylor had the diamond set in a ring and sported it on her finger nearly every day. It was later sold by her estate for a reported $8.8 million.
As if we needed another reason to envy the former Victoria's Secret angel, she stepped out on the Golden Globe red carpet sporting the accessory of the year from hubby-to-be Jason Statham—a 5-carat round diamond set in platinum and worth roughly $350,000.
The Modern Family star kept up wedding tradition by first accepting an engagement ring from now-husband Joe Manganiello. The actor gifted the Colombian beauty a 7-carat rock with an estimated $500,000 price tag.
Jay Z liked it, so he put a ring on it—a big one, at that. The rapper popped the biggest question of his life with a $5 million, 18-carat Lorraine Schwartz creation.
The new Mrs. Rothschild got an engagement ring fitting of a glamorous heiress with this square-cut sparkler. As Kathryn Clark from Eshed Diamonds told E! News, the diamond falls between six and eight carats and could have cost upwards of $800,000.
Kanye West once rapped, "throw your diamonds in the sky," but this is one diamond the famous reality star won't be throwing anywhere. Worth an estimated $3 million, Kim proudly sports the 15-carat cushion cut rock safely on her ring finger.
While their wedding would never be, Bennifer did give us one other thing besides one of the best celebrity couple nicknames of all time—an equally memorable engagement ring. Though Lopez ultimately returned the rock to Affleck, we will never be able to forget the $2.5 million, 6.1-carat pink diamond sparkler from Harry Winston.
When the Friends alum agreed to be Justin Theroux's wife, she got this 8-carat radiant-cut diamond—worth an estimated $500,000.