Justin Theroux gives Jennifer Aniston 'huge' diamond ring

The 43-year-old actress and the actor have been dating for around 15 months and got engaged on his 41st birthday on Friday.u00a0"It's a huge emerald-cut (eight-carat) diamond," the Daily Telegraph quoted a friend as telling Life and Style magazine.

"It's a rectangle with tapered diamond baguettes on the sides. It's beautiful.u00a0"Just after Jen got engaged, she called all her friends and told them about it. She was so happy and said she loves the ring. I think she was overwhelmed and overjoyed by the size and beauty of it!" the friend added.u00a0The couple are reportedly planning to wed in Greece later this year.

Jennifer Aniston and Justin Theroux