"He's just so beautiful and handsome to me," the smitten actress told Women's Wear Daily while attending a dinner in her fiancé's honour hosted by Detail magazine.
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Jennifer Aniston and Justin Theroux
"He just gets better every year. He's just like a lost gem in the sand, and he's always been there and been brilliant, and now this is just in a different light."
Justin graces the cover of this month's issue of the publication, and Jennifer is definitely a fan.
"I love that his eyeballs are so beautifully captured because those eyes just knock me out every day," she added.
Jennifer Aniston and Justin Theroux announced their engagement in August 2012
"I commend him for his courage. This is not normal for him. He's so graceful and utterly kind and golden."
Jen's best friend Courteney Cox – attending the party with her fiancé Johnny McDaid – also gave the photo shoot her approval. "There's no better cover boy than (him)," she said. "He's so handsome and cool."
Jennifer and Justin were dating for more than a year when they announced their engagement in August 2012. The pair are keeping tight-lipped about their wedding plans, but fans are hoping they see the stars tie the knot this summer.