In SATC2 Carrie traded in her iconic "Carrie" necklace for a clover necklace. She wore it several times throughout the movie.
Carrie's necklace is by Chahan Minassian and has a hefty price tag of $20,000. For those of you who want a little luck like Carrie but don't have $20,000 tucked away under your mattress, there are several deals out there for you.
This one is from SATC costume designer herself, the wonderful Patricia Field.
$56-$72 at Patricia Field
Juicy Couture Wish Clover Necklace $31.90 at Nordstom
Four Leaf Clover Necklace $13.53 at ASOS