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(UPI) - Country music star Carrie  Underwood wore $31 million in Johnathon Arndt diamonds on the red  carpet at the Grammy Awards in Los Angeles Sunday.

PHOTOS: 2013 Grammy Red Carpet

Underwood wore a necklace that featured 381 carats of oval, pear, marquise  and round brilliant white diamonds from the 2013 Johnathon Arndt Collection, the  Beverly Hills, Calif., jeweler said in a news release.

The loaner bauble must have been good luck: Underwood won the Grammy for Best  Country Song for her hit "Blown Away."