Justin's given Jennifer an impressive rock

Jennifer Aniston displayed her engagement ring from fiancé Justin Theroux for the first time over the weekend.

The actress was out in Santa Fe, New Mexico with Justin when she was snapped wearing the huge rock on her left hand.

Jennifer‘s impressive ring is reportedly an emerald-cut diamond with an estimated price tag of around $500,000.

She was said to have been ‘overwhelmed and overjoyed’ when Justin proposed to her with it on his 41st birthday in August.

Jennifer, 43, struck up a romance with Justin in May 2011 after meeting him on the set of comedy film Wanderlust.

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An emerald-cut diamond is a very stylish choice.

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Anna Duff