Chris Pratt and Katherine Schwarzenegger announced their engagement on January 14, after just seven months of dating.
Announcing the news on Instagram, Pratt wrote, "Sweet Katherine, so happy you said yes! I'm thrilled to be marrying you.
"Proud to live boldly in faith with you. Here we go!"
Schwarzenegger later shared the same photo, with her diamond ring front and centre, on her Instagram with the caption, "My sweet love. Wouldn't want to live this life with anyone but you."
Pratt is believed to have spent six figures on the diamond sparkler.
Kathryn Money, Brilliant Earth‘s vice president of strategy and merchandising, told Page Six Style, “Depending on the quality and specific characteristics of the centre diamond, we estimate the cost of the ring at approximately $150,000 to $250,000 or more."
Prince Harry knows how to pick an engagement ring! Markle's ring is made from three main stones, the centre of which is a cushion-cut diamond from Botswana, a place "close to the hearts" of both Meghan and Harry and where they first holidayed together.
The huge centre-stone is flanked by two side-stones, both round-cut and taken from the personal collection of Harry's late mother, Diana, Princess of Wales.
Four years after announcing his love for blonde bombshell Anna Heinrich on The Bachelor Australia, Tim Robards proposed to the criminal lawyer turned media darling over the weekend with a stunning emerald cut diamond ring.
The sparkler shown in Anna's adorable engagement post is estimated to be worth up to a whopping $173,000.
"The ring features a beautiful emerald cut diamond with round side stones set into a platinum band. The central diamond appears to be approximately 4 carats."
"With emerald cut diamonds, it's important to choose a stone with high clarity, because flaws, if they are present, are more visible than in round diamonds, which have more facets to them," he continued.
"So we would assume Tim selected an optimum grading. A ring of this style and size could stretch up to $200,000 in price."
Nice work bachie, and congrats to the happy couple!
Jesinta Campbell’s dazzling 4.5 carat sparkler which Buddy Franklin gave when he popped the question back in December 2014 was designed by the AFL star with the help of Sydney jeweller Patrick Nader of Nader Jewellers. The ring is believed to be worth between $75,000 and $100,000. "Jesinta had no idea about (the engagement) and we had to tap into the things she loves," Nader told Daily Mail. "Jesinta is outgoing, a bit more bubbly, a bit more savvy and edgy in her dress code - so we opted for an Asscher cut with some bling around it so it sparkles a bit more."
Miranda’s beau Evan Spiegel popped the question with a 2.25 carat ring believed to have cost between $100,000 and $150,000. Modest some might say considering Speigl is worth $2.6 billion. The design is a classic round diamond offset by two tapered baguettes on either side.
Pippa Middleton debuted a giant sparkler following news that she had become engaged to financier James Matthews, 40, this week. The ring is estimated to have cost $350,000 and according to The Telegraph the central stone is thought to be at least three carats. It has Art Deco aesthetic, and it possibly an Asscher cut diamond.
Kate Upton took the opportunity to add a little extra bling to her ensemble at this year’s Met Gala in the form of a dazzling diamond engagement ring. The model-slash-actress confirmed she is engaged to longtime boyfriend Justin Verlander by flashing the reported $2 million sparkler for all to see. Like you could miss it!
Rosie Huntington-Whiteley debuted her whopping 5-carat Neil Lane engagement ring (worth a reported $467,000!) from longtime love Jason Statham at the 2016 Golden Globes.
James Packer knew he needed a ring fit for a diva when he presented her with this jaw-dropping 35-carat diamond ring by Wilfredo Rosado. The emerald cut diamond is flanked by two tapered baguettes on a platinum setting.
Ciara was gifted a 16-carat diamond stunner when Russell Wilson got down on one knee back in March. The design is a modern-take on a classic style, with a giant rock in the centre surrounded by four baguettes.
The Duchess of Cambridge
While all these other stars think bigger is better, The Duchess of Cambridge trumps them all with her priceless ring, presented to her by Prince William. The ring, worn by the beloved Princess Diana when she was married to Prince Charles, is an 18-carat diamond-encrusted sapphire.
Ryan Reynolds popped the question to Blake Lively back in 2012 with a 12-carat oval-cut pink diamond believed to be worth around $2 million.
A rock for for a Queen Bey! Jay Z gave his lady love an incredible 20-carat rock worth a cool $5 million.
Jennifer Aniston said yes to Justin Theroux when he asked her to marry him with this 8-carat sparkler worth a reported $660,000. "He rocked it up," Jen told the NY Times. "It took me a while to get used to it. I’m not a diamond girl. I’m more Indian jewelry and stuff."
Joe Manganiello made Sofia Vergara’s Christmas extra special in 2014 when he got down on one knee and presented her with this 7-carat dazzler by Lorraine Schwarz worth $660,000.
Understated is not a word in Kim Kardashian or Kanye West’s vocabulary. When Kanye popped the question to Kim, not only did he hire out San Francisco's AT&T Park, commission a 50-piece orchestra and put on a firework show. He also presented her with a stunning 15-carat cushion-cut diamond ring by Lorraine Schwarz worth upwards of $4 million.
After six children together, Angelina Jolie and Brad Pitt finally became engaged in 2012 and the ring was something else. Brad popped the question with a unique 16-carat emerald cut diamond flanked by smaller diamonds making up the band worth an estimated $660,000.