Miranda Lambert on 32nd birthday: Diamonds are a girl's best friend

Miranda Lambert turned 32 on Tuesday, and the country singer celebrated with diamonds.

Lambert posted a photo on Instagram showing off not one -- but two -- diamond earrings in one of her ears, alongside the caption: "Diamonds are a girls best friend! #2isbetterthan1 #piercing #32today #bday"

The day before Lambert enjoyed some quality time with her gal pals, writing on Instagram, "Never too old to ride a unicorn...And thank God for friends that spend the day with you painting your pony!"

Over the summer Lambert split from Blake Shelton, her husband of four years. Last week, he confirmed that he's dating Gwen Stefani, his co-star on NBC's "The Voice." Stefani, who's also newly single, broke up with her husband, Gavin Rossdale, in August.