Initials are in and you don't necessarily have to wear your own. I love these Alliterative Alphabet Necklaces ($38 at Anthropologie) that come in black, green, nude, and mother of pearl.
Here are more monogramed jewels:
Dramatic Monogram Cuff, Mother of Pearl ($58)
Also available in Orange, Green, or Black
Alex Woo Letter Necklace ($96 on sale at Bloomingdales)
Gold Filled Petite Initials Hand Stamped Necklace ($32 at Bella Button Designs on Etsy)
Teeny Tinies Initial Pendant Necklace ($24 at Jennifer Casady's shop on Etsy)
Sterling Silver Initial Pendant ($54 at Christina Kober Designs on Etsy)
Typewriter Key Necklace ($12.99 at sparkeez8z1d's shop on Etsy)