The model, 30, told Us Weekly "it feels so great" to be wearing the three-stone bauble. "It's a rose cut. It's a beautiful ring."
"It's amazing to be designing. We've been with QVC for a little bit over a year and we have a couture line," she told Us. "It's at Nordstrom and other department stores, but with QVC it's special, because it's instant gratification of hearing from the customer."
Alves and McConaughey met at an L.A. bar in 2006 and have two children together: son Levi, 3, and daughter, Vida, 2.
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