The average cost of a celebrity engagement ring hit £1 million for the first time in 2016. A study by 77 Diamonds found some interesting trends in celebrity engagements. Apparently those getting engaged for the second time spent six times more than first-timers. Equally bizarrely, those who are still together spent just over half the amount as those who have subsequently split.
Some celebrities have taken engagement bling to another level - and we reveal some of the most jaw dropping rings sported by the stars.
She has a history of pricey engagement rings - including a £2 million cracker from Nick Canon. However, her most impressive one was definitely her most recent one. She may never have reached the stage of actually marrying James Packer, but is said to have decided to keep the £8 million ring for sentimental reasons.
Mariah's ring knocked Elizabeth Taylor off the top spot of most incredible celebrity engagement rings. Not only did she have quite a collection of them but she also had one of the most astonishing: a £7 million ring given to her by Richard Burton.
The most fabulous couple in music were always bound to exchange impressive bling. Jay Z gave her an octagon-cut engagement ring from Lorraine Schwarz in 2007. It has been valued at a jaw-dropping £4 million.
In 2004, Paris received an incredible 24-carat diamond engagement ring from her fiancé Paris Latsis - said to be worth about £3.6 million. The engagement was cancelled (four months later), and Paris put the ring into an auction to raise money for the victims of Hurricane Katrina. It was said to have sold for around half its original price.
Kim Kardashian West
Kim was no stranger to marriage when she met Kanye West - as their wedding was her third. However, this didn't put Kanye off buy her an extraordinary 15 carat diamond ring, estimated to be worth £1.1 million. H subsequently gave her a second similar ring so she could have one for each hand.
The 'Friends' Actress got engaged to Justin Theroux in 2012, and married him in 2015. The oval diamond he gave her has been estimated at an impressive £800,000.
One of the most famous engagement rings of all is worth a fraction of these celebrity rings - although still far more than the average house. The 12 carat sapphire, surrounded with diamonds, given by Prince Charles to Lady Diana, and then subsequently by Prince William to Kate Middleton, is currently thought to be worth more than £300,000.
The most expensive weddings that ended in divorce
The most expensive weddings that ended in divorce
The reality star and the basketball star are the most extreme example on our list. They married in style in August 2011 - with a perfume launch designed to coincide with the day. The total cost was said to be $10 million, with much of the cost covered by a magazine deal and individual arrangements with suppliers - including a $20,000 Vera Wang dress and a $6,000 cake. Their marriage lasted 72 days before she filed for divorce because of irreconcilable differences.
The Big Brother fake and the boy band member met on Celebrity Big Brother in 2006 and were married the same year. They had an extravagant ceremony for 45 people at Dartmouth House in Mayfair, with a dress designed by Elizabeth Emanual - who designed Princess Diana's dress. The ceremony was thought to have been paid for out of the £300,000 magazine deal for the photographs. They split after ten months of marriage.
The most expensive wedding on the list is the 1981 wedding of Charles and Diana with an estimated cost of £50 million in real terms, including a five foot high cake. They were divorced ten years later.
The couple were married in New York in 2002 at a cost of $3.5 million. The best man was Michael Jackson, and the maid of honour Elizabeth Taylor. Among the entertainment that evening was a performance by Stevie Wonder. Sadly the couple split the following year, and divorced five years later.
The couple married in 1991 at Michael Jackson's Neverland Ranch, in a ceremony said to have cost $2 million. Michael Jackson even stood in as father of the bride. The couple split five years later.
The couple are said to have spent $2 million on their 2006 wedding in an Italian castle, featuring entertainment from Andrea Boccelli. They divorced after five years of marriage.
Paul McCartney and Heather Mills spent around $3 million on their wedding in June 2002 - renting Castle Leslie in Monaghan, Ireland, laying on a firework display thought to have cost £100,000 and a wedding dress said to have set them back more than £20,000. They divorced in 2007.
The couple were fairly restrained in terms of this list, spending $500,000 on their Manhattan wedding in 1993, featuring a Vera Wang dress with a 27-foot-train. However, they also succumbed to the five year rule, and divorced in 1998.
The darlings of Hollywood married in 2000 at a cost of $1 million. The LA ceremony was decorated with 50,000 flowers, and finished with a 13 minute fireworks display. They divorced five years later.
The British director and the America superstar were married in Skibo Castle in the Scottish Highlands at an estimated cost of $1.5 million. Guests included Gwyneth Paltrow, Sting and Trudy Styler. Madonna wore a diamond tiara once owned by Princess Grace Kelly of Monaco. The couple survived the five year point that floored so many others, but divorced after eight years of marriage.