Personal earrings or necklace

With the initial earrings available in gold, silver and rose gold you have a selection of pieces to mix and match, such as an initial earrings in silver with the longer chain. The shorter length of the initial earrings makes them ideal for layering and their versatility makes it easy to match to your style. You can wear them as a earring or a necklace.

From: http://www.astridandmiyu.com/blog/2013/09/how-were-wearing-initial-necklaces-in-the-office/