UPDATE: Mila Kunis And Ashton Kutcher Spark Rumours They’re Married

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.'

When Ben proposed to Jen (part two), 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. He upped his game this time however, as although JLo's rock was worth a rumoured $2.5 mil, it wasn't exactly classy.

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, as he said '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.'

Ready to hear the cutest engagement ring story ever? According to reports Jamie tried to track down Zelda Fitzgerald's original engagement ring to give to Mossy. Although he didn't locate the original, he apparently found sketches of the ring and had a jeweller design a similar one for Ms Moss.

Benjamin 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.

Half of the platinum band of Katherine's Ryan Ryan ring is from her mother's engagement ring. How precious is that?

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.

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."

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.

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

Nicoel Kidmaan 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.

Keira Knightley flashed her engagement ring on a stroll with Klaxons drummer James Righton. US Weekly reported that it is a solid platinum band with a cut solitaire diamond which is aproximately 2 carats. They estimated it is worth $40,000.

Jen might have received four engagement rings (so far), 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.

When Rachel gave birth to Skyler she was given a 10 carat Neil Lane diamond ring worth nearly $300,000 (we die). 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!'

Brad Pitt designed Angie's rock with her jeweller Robert Procop who said in a statement "Working closely with Brad Pitt to realise the star's vision for the ring, Robert Procop was able to source a diamond of the finest quality which was then transformed using Pitt's unique designs, cut with distinctive faceting to a shape and size that perfectly suits Angelina's long, slender fingers.”

The Lorraine Schwartz rock is oval cut, pink, is reportedly 12 carats and is worth $2 million. Blake is a lucky, lucky lady. The jeweller said in a statement: 'Ryan chose Lorraine Schwartz to help him find a flawless, light pink oval diamond. They worked together to design a custom setting in rose gold and pave diamonds with a nod to deco.'

Emily Blunt and John Krasinski

Gwyneth Patrow is rarely spotted wearing her Asscher cut diamond. We don't blame her, we'd be scared to wear it too.

A rep at the Diamond Information Center said that Miranda Kerr’s ring has an estimated 3-4 carat oval diamond set on a platinum band.

Justin popped the question to Jen with an eye-popping rock, which she debuted in October on a day out in Sante Fe with Justin. It is rumoured to be $1 million and 10 carats. Brad who?

William proposed to Kate with his mother Diana's 18 carat saphire and diamond engagement ring on a trip in Kenya. Princess Diana's engagement ring from 1981 has gotta be priceless?

The Hump proposed to Kim Kardashian with an emerald cut Lorraine Schwartz ring, which is 20.5 carats in total. It is estimated to be worth two million dollars - that's nearly $30,000 per day of their marriage.

Beyonce's rock from Lorraine Schwartz reportedly cost a stonking $5 million. Speaking of stats (make sure you're sitting down for this) the flawless diamond is rumoured to be 18 carats.

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

David proposed to Posh with a rather 90s looking marquise cut diamond ring. But this is Victoria Beckham so of course she has upgraded to a bigger rock...

Why settle for just one rock when you can have two? VB upgraded her engagement ring to a mega pear shaped diamond.

The Legally Blonde actress wears a 4 carat Ashoka diamond by William Goldberg.

In April 2011 Matt proposed with a 9 carat emerald-cut diamond worth approximately $200,000.

Joel Madden proposed 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.'

James Franco and Alison Brie went public with their engagement in August 2015 - and she sported a beautiful ring on her wedding finger.