Actor John Krasinski gave his wife and actress Emily Blunt a diamond necklace with the letter 'H' to celebrate the birth of their daughter Hazel.

Blunt delivered the baby in February.

The `Edge of Tomorrow` actress was thrilled when her husband gave her a delicate chain encrusted with the precious stones, reports contactmusic.com.

The 31-year-old star told The Sunday Telegraph's Stella magazine: "It was a gift (from Krasinski) for my little girl."

The couple is besotted with Hazel.

`She is heaven; my heart sort of explodes. I'm wondering what we were doing without her, actually. I can't really remember. John and I spend a lot of time going, 'Isn't she cute? Oh my God, look at her, she's so cute... She just stares into your soul... Her eyes are denim blue. She looks like a combination of my mother and John's mother," said Blunt.