For Brides (and the People Who Have to Put Up With Them)
"Bridesmaid Gift Ideas: Beautiful Initial Jewelry"
Since lots of girls already have a personalized necklace, you could also go the bracelet route. This one from Laura James Jewelry accommodates all three letters of a monogram, which adds a level of extra-personalization to your gift.
Laura James Jewelry Oval Tag Vintage Charm Bracelet, $88