Beyonce said "yes" to rapper Jay-Z back in 2008, with a cool $5million Lorraine Schwartz ring.
$2.5 million and Ryan Reynolds made it official with this oval cut, 12 carat diamond.
Ciara's beau Russell Wilson parted with a cool $2 million for this sparkler.
Mike Comrie shelled out $1 million for Duff's princess-cut ring
The Other Woman star finally said yes to fiance Justin Verlander last year, after receiving this $1.5 million ring
Rumoured to still have it, Lamar Odom's generosity stretched to $850,000. Let's hope she's got it somewhere safe!
Love him or hate him, Trump gave Melania $3 million worth of diamonds when he proposed.
She broke the hearts of millions when saying yes. But Mr Clooney did good and only had to spend $750,000 to secure his gal
Diana Princess of Wales
You know the ring, and you probably know who it belongs to right now. But the sapphire that we all know and love was originally the rock between Prince Charles and Princess Di from 1981. Back then it had a price tag of $47, 000
The Duchess of Cambridge
And it would be rude to have one without the other. This is where we all know and adore the "royal rock" today. The Duchess of Cambridge dons it on a daily basis, and today's estimation is at a more fitting $500,000
Despite the sour split with womaniser Taylor Kinney, he and Gaga shared one of the most personalised rings we've seen; a heart shaped diamond with diamond encrusted quote. But that stuff doesn't come cheap, in fact it'll cost you a cool $500,000.
A kiss from a rose and a gift from the jewellers, Seal's proposal took Klum's hand to new worth at $150,000
It wasn't to last, not even after Nick Young forked out $500,000 for the Aussie rapper's rock.
This $250,000 rock never made it down the aisle, but then neither did Matt Bellamy
Can you remember when Katy Perry and Russell Brand were engaged? (LOL) There must've been fireworks when she first saw this $120,000 Cartier ring
The funniest couple we know, Dax Shepherd proposed to Bell with this classic 3 carat, $100,000 ring
Second time around, husband Jim Toth chose a 4 carat, $250,000 beauty for Witherspoon
They may not be the most public of couples, but that didn't stop Enrique Iglesias from proposing to tennis star girlfriend Kournikova with $2.5 million in his pocket!
Catherine Zeta Jones
Proving Hollywood wrong and that love can last in Tinsel Town, Michael Douglas and Jones' 17 year marriage and $1 million engagement ring seem to be the perfect combo
This isn't the Pitt but rather the Theroux, and his love saw no bounds and no budget with this 10 carat ring valued at $1 million
This engagement ring from Marc Anthony cost $4.1 million.
Newly engaged Dunst received this $80,000 yellow-gold rock from beau Jesse Plemons
Kim Kardashian West
Never the couple of modest means, Kanye West elaborately spoilt Kardashian to $8 million of diamonds on their engagement
The butterfly queen herself, Mariah Carey of course tops the list of most expensive engagement rings of all time! James Packer + 35 carats + $10 million = no wedding...but she did keep the ring apparently, so props to her!
We've all heard about their disastrous proposal, but Brian Austin Green came through and Fox eventually managed to wear her $80,000 ring for us all to oogle
This 6-carat Neil Lane was the ring of choice for Joel Madden to give Nicole Richie
Some distance (and price bracket) away from pal Nicole's, of course Paris would make the top five! Latsis popped the question with 25 carats and a $4.7 million price tag but it wasn't enough to keep the couple together and just four months later they announced their split