Britney Spears "can't stop looking" at her engagement ring

(CBS) It's been a few weeks since Britney Spears and Jason Trawick got engaged, but the singer is still giddy over her engagement ring.

"I can't stop looking at it!" the 30-year-old tweeted on Thursday, along with the photo of her showing off the sparkler.

Pictures: Britney Spears
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Trawick, 40, proposed with a custom-made ring from jeweler Neil Lane in December. Lane told People magazine that the ring has a round diamond in a platinum setting made to look like a crown, with small round diamonds around the band.

Spears first met Trawick in 2006 when he was her agent at William Morris Endeavor Entertainment. They started dating in 2009.