Sheridan Smith is ENGAGED after three months of dating

Prince Harry proposed to Meghan over roast chicken at their cottage in the grounds of Kensington Palace. The ring, reportedly worth £200,000, was designed by Prince Harry and made by Cleave and Company. Featuring a gold band and three diamonds: the centre one from Botswana and the two outer jewels from Princess Diana's personal collection.

William proposed to Kate with his mother Diana's 18 carat sapphire and diamond engagement ring on a trip to Kenya, later revealing that he had to carry the valuable heirloom around in a rucksack for about three weeks before proposing. 'Obviously, [my mother]'s not going to be around to share in any of the fun and excitement of it all, so this is my way of keeping her sort of close to it all,' William explained at the press conference announcing his engagement. 'I just hope I look after it,' Kate added.

Angelina's dazzling engagement ring – a white diamond style featuring 16-carat gems, designed with Robert Procop - reportedly set Brad back about $250,000. 'Brad had a specific vision for this ring, which he realised over a year-long collaboration with Robert,' the jeweller's team revealed in a statement. 'He wanted every aspect of it to be perfect.' Angelina then specifically asked to keep the ring when she filed for divorce earlier this year. Sob.

He liked it, so he put a ring on it. Jay Z proposed to Queen B with an 18-carat, octagon diamond ring set in a platinum base, designed by jeweller to the stars Lorraine Schwartz. It's rumoured to have set the rapper-turned-mogul back about $5 million, and still ranks as one of the most expensive engagement rings of all time. Such is the quality of the stone, it's been certified by a diamond expert as truly exceptional. As Beyoncé herself would put it, flawless.

Jamie Hince reportedly tried to track down the diamond engagement ring worn by one of Kate's favourite 1920's icons, Zelda Fitzgerald (wife of the ultimate chronicler of the Jazz Age, F. Scott Fitzgerald), but his search proved fruitless. Eventually, using sketches of the original, he had a jeweller design a similar style for the supermodel, which features a large diamond set in a diamond-studded band.

Dave Franco proposed Alison Brie last year with a vintage-inspired round diamond halo, which is 18 carat yellow gold.

George Clooney proposed to human rights lawyer Amal Alamuddin with an emerald-cut diamond estimated at 7-plus carats, which he helped to design.

Rob Kardashian proposed to Blac Chyna earlier this year without telling his family before it was publicly announced. The ring was 7 carats and was designed by Ben Baller.

Blake Lively and Ryan Reynolds tied the knot in secret back in 2012. Blake's engagement ring featured a 12 carat oval diamond in light pink, off-set with pave diamonds, and was designed by the A-list's jeweller of choice, Lorraine Schwartz.

American football player Russell Wilson proposed to Ciara this year with a 16-carat diamond ring.

Anne's six carat bling ring is oh-so-classic. Her rep revealed that 'the ring is a design collaboration between her fiancé Adam Shulman and Kwiat Heritage Jewels'.

John Krasinski gave Emily Blunt a 3 carat Neil Lane ring, worth an estimated $100,000.

Darren Le Gallo proposed to Amy Adams with a Jean Dousset diamond ring in 2008, and they tied the knot last year.

Martinez commissioned his Paris neighbour Robert Mazlo to design Halle Berry's impressive 4 carat emerald ring. The designer told People Magazine that the ring symbolises the couple's story: 'the ring is textured and contains codes and symbols which you cannot see … only the person wearing it can. It's very uncommon. The symbols and codes represent [the couple's] story and only they can interpret it'.

When she and Chris Martin were married, Gwyneth Patrow was rarely spotted wearing her Asscher diamond as it was so precious.

Justin popped the question to Jen with an eye-popping rock, which is rumoured to be $1 million and 10 carats.

When Ben proposed to Jennifer Garner he gave her a 4.5 carat by Harry Winston. Yep, that's the same designer of the pink diamond he gave Ms Lopez in 2002.

Ice hockey player Brooks Laich proposed to dancer and actress Julianne Hough earlier this year with a six-carat sparkler from Lorraine Schwartz.

Jessica Biel revealed that her vintage-style ring (which is worth an estimated $130,000) was picked by Mr JT. She told InStyle: 'I had no say whatsoever. I don't micromanage. He is fearless in his choices and has a real eye for design. And I'll be honest: He has better taste than I do.'

Michael Polish proposed to Kate Bosworth with a rectangular diamond ring designed by jeweller, Ocappi.

Jen might have received four engagement rings up until now, but the pink Harry Winston diamond she received from Ben Affleck in 2002 is by far the glitziest. It was reported she gave it back to Ben when they split.

In April 2011 Matthew Bellamy proposed to Kate Hudson with a 9 carat emerald-cut diamond worth approximately $200,000.

Half of the platinum band of Katherine Heigl's ring is from her mother's engagement ring. She and Josh Kelley married in 2007.

The engagement ring James Righton gave Keira Knightley is a solid platinum band with a 2 carat diamond, and its worth is estimated to be about $40,000.

Tom Cruise proposed to Katie with a 5 carat oval shaped ring. Tom revealed that he bought the engagement ring just after thier first date.

Basketball player Kris Humphries proposed to Kim Kardashian with an emerald cut Lorraine Schwartz 20.5-carat ring. It was estimated to be worth two million dollars - that's nearly $30,000 per day of their marriage.

When engaged to Lamar Odom, Khloe Kardashian wore a 12.5 carat ring worth $850,000, by Vartan's Fine Jewellery. She was given it just two weeks before she got married.

Kanye West's romantic proposal to Kim Kardashian is probably the best ever moment from Keeping Up With the Kardashians. Kanye helped design the ring and it is reportedly worth $1.6m and has 20 carats. Sadly though, Kim's precious diamond ring was stolen when she was held at gunpoint in Paris earlier this year.

William Tell proposed to Lauren Conrad with a 2-carat round cut diamond with a thick band, worth an estimated $40,000. The pair wed in 2014.

Taylor Kinney proposed to Lady Gaga last year with a heart-shaped diamond ring by Lorraine Schwartz, but they called off their engagement earlier this year.

Miley Cyrus was engaged at just 19, and her ring is classic Hollywood as it is a 3.5 carat cushion-cut handcrafted ring by tinseltown's favourite designer Neil Lane. He has blinged up many a Hollywood starlet, including Nicole Richie and Rachel Zoe.

Professor Green proposed to Millie Mackintosh in 2013 with a sparkly diamond ring by Frost London. Sadly, the pair got divorced earlier this year.

Founder of Snapchat Evan Spiegel proposed to Miranda Kerr earlier this year with timeless round diamond ring of about 2.5 carats, which is reportedly worth around $55,000.

Ashton Kutcher proposed to Mila Kunis with a 5-carat Tiffany diamond ring reportedly worth $250,000. But rather than wearing it out and about Mila prefers to wear a less-precious $90 wedding band she bought online from Etsy.

Heidi is a sucker for a sparkly gold floor-sweeping gown, and she clearly applies the same rules to her jewellery, as her engagement ring from Seal has a 10 carat yellow diamond on a gold band.

A rep at the Diamond Information Center said that Miranda Kerr's ring, given to her by ex-husband Orlando Bloom, had an estimated 3-4 carat oval diamond set on a platinum band.

Benjamin Millipied designed Natalie's ring with Jamie Wolf, using a recycled platinum ring, a large antique stone and conflict free diamonds. Perfect for the eco-warior.

Nicole Kidman has a three stone Cartier engagement ring (rumoured to be worth $45,000) and her wedding band is said to be a Cartier eternity band.

The Legally Blonde actress wears a 4-carat Ashoka diamond by William Goldberg and is married to Jim Toth.

David proposed to Posh with a rather 90s looking marquise cut diamond ring back in the day. But this is Victoria Beckham so of course she has upgraded to a mega pear shaped diamond.

Joel Madden proposed to Nicole Richie with a 4-carat Neil Lane sparkler. The designer worked closely with Richie on the design of the ring and he said that Joel 'just wanted her to have her dream ring.'

When Rachel gave birth to Skyler she was given a 10-carat Neil Lane diamond ring worth nearly $300,000. Skyler weighed 6lb 12 oz when born so the rock was more than a carat a pound. Neil Lane said of the diamond: 'I knew she's wanted a cushion cut forever. It was their first baby and she's been working so hard that Rodger wanted to do something very special. Rachel was thrilled and hasn't taken it off since!'