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Mariah Carey has been loving life in Colorado with her hubby Nick Cannon and their twins, but the curvy songstress is still making time to visit her mom during her holiday trip.

Mimi's mom, who owns the jewelry store Joan Boyce in Aspen, has been showing off her latest collections to her superstar daughter ... including dazzling diamonds! Get your checkbook ready, Nick!

The American Idol judge has found the perfect way to handle the chilly Aspen air ... a puffy jacket and boots with the fur. We have a feeling Flo Rida is wondering if those are Apple Bottom Jeans. We doubt it.