Pretty in pink!

When Ryan Reynolds was choosing an engagement ring for Blake Lively, he decided on something a bit untraditional -- but very beautiful.

"Ryan chose Lorraine Schwartz to help him find a flawless, light pink oval diamond," a spokesperson for the jeweler tells Us Weekly. "They worked together to design a custom setting in rose gold and pave diamonds with a nod to deco."

After tying the knot in a private ceremony at Boone Hall Plantation on Sept. 9, Reynolds, 35, emerged the next day with wife Lively, 25, who showed off her new light pink bling. The newlyweds were photographed sharing a big romantic kiss in Charleston, South Carolina while leaving with their overnight bags.

To pair with her custom engagement ring, Lively walked down the aisle in a one-of-kind couture Marchesa bridal gown with hand-draped silk tulle bodice adorned with crystal and rose gold embroidery.

The Gossip Girl actress began dating Reynolds about a year ago after meeting on the set of the 2011's action flick Green Lantern.