"It's so gorgeous, and I'm very lucky for many reasons, but I look at it every day and just think, 'Wow.' I don't even know what to say," the actress told People of the ring Thursday. "Is that not the most beautiful thing you've ever seen in your whole life?"
"I do this," the 26-year-old Twilight alum continued, flashing the ring, "and then I glance at it again." Although she's finally showing off her blinged-out, floral-inspired ring, Nikki is still keeping mum on the details behind Ian Somerhalder's proposal, adding, "You've got to keep some things to yourself and have a moment."
Still, she does enjoy sharing some of her and Ian's special moments with fans. "Love is love, and people see it, and they feel it, and everyone's really attracted to that idea," the actress continued.
"As much as we want to expose as much of that as we can, we also just really want to keep some things for us and our family. You don't have the opportunity to do that very much with what we do for a living, so we're going to do our best."
News of Nikki and Ian's engagement was revealed last month, after they posed on the carpet together for the first time as a couple.
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Gallery | These Celeb Couples Say the Sweetest Things