When news broke this week that "Big Bang Theory" star Kaley Cuoco and her boyfriend of three months Ryan Sweeting got engaged, a few eyebrows were raised. But when a source close to Cuoco told Us Weekly "It's only been three months but she knows Ryan is the one. When you know, you know," we figured, heck, let's cheer for true love.


Then today, the 27-year-old was spotted on a coffee run in Sherman Oaks, Calif., and gave us a peek at her gorgeous ring. Now we understand what true love looks like, and it's very sparkly.


The 2.5 carat square-cut diamond cost Sweeting $65,000, according to E!, and it features tiny diamonds along the band as well as around the massive rock.


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  • Halle Berry


    Olivier Martinez <a href="http://www.huffingtonpost.com/2012/01/11/halle-berry-engagement-ring_n_1200187.html" target="_blank">proposed to Halle Berry</a> in 2012 with this unique emerald ring.




  • Keira Knightley


    Keira Knightley's <a href="http://www.usmagazine.com/celebrity-style/news/keira-knightleys-engagement-ring-how-much-it-costs-2012295" target="_blank">two-carat engagement ring</a>, from now-husband James Righton is surprisingly modest. Knightley and Righton became engaged in 2012 and <a href="http://www.huffingtonpost.com/2013/05/16/keira-knightley-married_n_3287602.html" target="_blank">married in May</a>. Post-wedding, Knightley added a yellow gold band to her ring finger for a trendy mixed-metal look.




  • Jessica Simpson


    Jessica Simpson's <a href="http://www.okmagazine.com/news/check-out-jessica-simpsons-engagement-ring" target="_blank">unusual engagement ring</a>, from boyfriend Eric Johnson, features a ruby surrounded by diamonds. Simpson and Johnson have been engaged <a href="http://www.people.com/people/article/0,,20442126,00.html" target="_blank">since 2010</a>.




  • Anna Paquin


    Anna Paquin's ring, from now-husband Stephen Moyer, features an <a href="http://ringoblog.com/ring-by-type/engagement-rings/cathy-waterman-rings-anna-paquins-engagement-ring/" target="_blank">unusual rustic diamond</a>. Paquin and Moyer married in 2010.




  • Dania Ramirez


    "Heroes" actress Dania Ramirez said her fiance, director John "Bev" Land, <a href="http://news.instyle.com/2012/01/11/dania-ramirez-engagement-ring/" target="_blank">designed her distinctive engagement ring</a>. They <a href="http://www.usmagazine.com/celebrity-news/news/dania-ramirez-marries-director-john-beverly-amos-land-2013192" target="_blank">married in February</a>.




  • Marion Cotillard


    Rumors that <a href="http://www.popeater.com/2010/12/09/marion-cotillard-engaged/" target="_blank">Marion Cotillard was engaged</a> to her boyfriend, French actor Guillaume Canet, swirled when she stepped out wearing this unique sparkler in 2010. They have yet to tie the knot.




  • Louise Roe


    TV host Louise Roe <a href="https://twitter.com/louiseroe/status/276520677320847360/photo/1" target="_blank">tweeted about her engagement</a> in December 2012, sharing this photo with the caption, "Guys I have some exciting news to share, I am engaged! I was given my great-grandmother's aquamarine ring, i LOVE!" Her fiance is Abercrombie & Fitch model <a href="http://www.dailymail.co.uk/tvshowbiz/article-2015953/Louise-Roe-shows-model-boyfriend-Josh-Slack-Miami.html" target="_blank">Josh Slack</a>.




  • Kate Middleton


    Prince William gave Kate Middleton the ring his mother, Princess Diana, chose when <a href="http://www.cbsnews.com/8301-31749_162-20022950-10391698/kate-middletons-engagement-ring-is-princess-dianas-/" target="_blank">she became engaged</a> to Prince Charles in 1981. William and Kate married in 2011, and we all have Kate to thank for making colored engagement rings so trendy!




  • Olivia Wilde


    Even <a href="http://www.huffingtonpost.com/2013/02/12/olivia-wilde-engaged_n_2671503.html" target="_blank">Tom Hanks</a> was stunned by Olivia Wilde's bling. The ring, given to Wilde in January <a href="http://www.huffingtonpost.com/2013/03/07/olivia-wilde-engagement-ring_n_2830610.html" target="_blank">by Jason Sudeikis</a>, features a halo of emeralds.