Jessica Biel arrives at LAX airport in Los Angeles on April 11, 2012. Credit: FameFlynet Pictures

Jessica Biel is letting that newly engaged glow show through!

The future Mrs. Timberlake went makeup-free on a red eye from Paris to Los Angeles, which touched down Thursday morning. She emerged all smiles from the flight wearing green pants, a grey sweater, a lace top and a plaid cap.

VOTE: Do these stars look better with or without makeup?

During her jaunt in the City of Lights, the 30-year-old star was spotted leaving the boutique of Elie Saab -- the amazing designer responsible for not only several A-listers' red carpet wardrobe hits, but bridal gowns too.

Looks like Biel is taking no chances with her wedding dress when she ties the knot with her fiance Justin Timberlake -- unlike the chance that he himself took when designing her six-carat engagement ring.

"Jessica's stylist really wanted Justin to come to her when picking out and designing the ring," a source reveals to Us Weekly. "She obviously knows what looks best on Jessica, and what type of things she likes to wear. They talked about it [in advance] and then Justin completely went rogue without telling Jessica's stylist, and decided to design the ring on his own."

The source was quick to note that this doesn't mean his love isn't a fan of the bauble her fiance chose. "But I wouldn't necessarily say it fits her style," the insider explains.