"OMG. Last night Jason surprised me with the one gift I've been waiting for. Can't wait to show you! SO SO SO excited!!!! Xxo," Spears teased Friday on Twitter and Facebook. She later updated her relationship status to "engaged" and posted about their weekend trip to Las Vegas.
We're all super excited for Brit Brit - she's come a long way since her head-shaving meltdown in 2007. So, what kind of ring did she get from Trawick?
"Jason is a romantic and when I asked him to tell me about Britney and what the ring would represent to them so I could find inspiration, his response was always the same - she is his princess!" celebrity jeweler Neil Lane told People .
Lane worked closely with Trawick to design a ring that "looks like a mini crown." The platinum setting holds a round white diamond and 90 small diamonds.
"Oh my god, he loved it," Lane revealed. "The guy was so excited and nervous. At the end of the day, even with all the fame, he's still a normal guy who was about to propose to the woman he loves."
Spears' third marriage looks to be the charm. The ring - estimated at over two carats - is small by celebrity standards. How does it stack up with other recent celebrity rings?
Kim Kardashian's engagement ring from now-ex Kris Humphries was the talk of Tinseltown when she debuted it earlier this year. The 20-carat stunner was designed by jeweler Lorraine Schwartz and carried a price tag of over $2 million, according to reports.
Later, eagle-eyed Kardashian watchers revealed that they've seen her in the ring before - several years ago, in fact.
"On December 26, 2007 Kim wanted to stage a paparazzi moment acting like she got engaged because she was with Reggie Bush at the time, so I did a set up with her with the same ring."
That might explain why she's been spotted wearing the ring since her divorce announcement.
Reese Witherspoon married Hollywood talent agent Jim Toth in a star-studded ceremony. The wedding came after Toth proposed to the Oscar-winning actress with a rare, four-carat Ashoka diamond from jeweler William Goldberg. The ring was reportedly worth $250K - not too shabby!
So, how's the marriage going?
"I got lucky. I did. I got very lucky, and he's wonderful. And so wonderful with the children. I'm very blessed," Witherspoon said in September.
Actress Kate Hudson got engaged to Muse rocker Matthew Bellamy after she learned of her pregnancy. The British musician gave Hudson an emerald-cut diamond with tapered baguettes for an engagement ring. The cost? About $200K.
"I haven't really announced it, I was waiting for someone to notice," Hudson told Matt Lauer after their "very romantic" engagement.
They're still in love: Hudson and Bellamy look pretty happy together with baby Bingham earlier this month.
Which celebrity engagement ring is your favorite?
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