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It turns out even when pregnant all a supermodel needs is a few well placed jewels. In a new ad for the Vivaria jewelry line, Victoria's Secret model Alessandra Ambrosio traded in push-up bras for diamonds.

Ambrosio, who is visibly pregnant with her second child, posed wearing little besides a few rings, bracelets and earrings from the Vivaria line. Shot by photographers Mert Alas and Marcus Piggott, the campaign is one of the few jobs Ambrosio has taken on while pregnant.

However, even a supermodel has to pay the bills and Ambrosio plans on hitting the catwalk again after her son is born.

"I already have jobs planned for afterwards, so hopefully will be back in shape," she told British Vogue.

Ambrosio, who already has a daughter Anja, revealed last month on Facebook that she and her husband are expecting a boy, writing, "We really tried to keep it a surprise but we were too anxious! Soon, we will have a little boy to rock our world!!"