Beyonce Knowles' daughter Blue Ivy Carter is the "most gorgeous baby in the world".

The 'Halo' hitmaker's stylist Ty Hunter revealed the tot - who was born on January 7 - is a "very calm, happy baby" and she looks just like her father, rap superstar Jay-Z.

He told the New York Post newspaper: "She is the most gorgeous baby in the world. Blue Ivy is a very calm, happy baby.

"When Beyonce holds her, she looks like her mom, but when Jay holds her, you can see him in her, too."

After the singer gave birth to Blue Ivy last month, the megastar couple admitted they were "in heaven" and described becoming parents as the "best experience" of their lives.

They said in a statement at the time: "Hello Hello Baby Blue! We are happy to announce the arrival of our beautiful daughter, Blue Ivy Carter, born on Saturday, January 7, 2012.

"Her birth was emotional and extremely peaceful, we are in heaven. She was delivered naturally at a healthy 7 lbs and it was the best experience of both of our lives.

"We are thankful to everyone for all your prayers, well wishes, love and support."

Beyonce and Jay-Z recently filed paperwork with the US Patent and Trademark Office to trademark Blue Ivy Carter's name to prevent others from profiting from the moniker in the future.