Kristin Cavallari, Beyonce, Kourtney Kardashian’s Extravagant Baby Bling and Bags: 15 Celebrity Push Presents (GALLERY)

By: Gabrielle Chung / September 27, 2012

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With Hollywood’s baby boom still in full swing these days, doting dads-to-be are stepping up their game, with the latest way celebrity extravagance — “push presents.”

After delivering their new bundle of joy, Hollywood’s newest moms are receiving more than just flowers for their hard work.

From Beyonce to reality TV mom Kourtney Kardashian, celeb moms are being showered with lavish gifts from their partners.

What exactly is a push present?

A push gift — also known as “baby mama gift” or “baby bauble” — is a present a father gives a mother to mark the occasion of her giving birth to their child. In practice, the present may be given before or after the birth, or even in the delivery room.

While flowers and balloons might suffice for the rest of us, celeb dads are spoiling their baby mamas with diamonds and designer duds.

Recently, new mom Kristin Cavallari revealed that she received a grey Hermès Birkin bag from fiancé Jay Cutler after she gave birth to their first child, son Camden Jack.

“I was really excited about it,” the former Laguna Beach star, 25, said of her gift. “[Jay] did a good job.”

Giving birth is hard work — and Cavallari’s man recognizes that: A Hermès Gris Tourterelle Clemence Birkin Bag is reportedly valued at over $23,000.

Which other Hollywood mom has been surprised with bling and other  expensive push presents?

Launch the gallery — above — to find out.