Introduced in 2009 by Tiffany, key pendants made a big lasting impression. This year, diamond key pedants will make a bigger splash, especially during Valentine’s Day 2010. The challenge will be to find diamond keys that are uniquely designed. One new trend that has popped up already in this genre is the birthstone key pendant. Again, gemstones are what separate a high-end key pendant from an average one. The more gemstones used in the design of the piece, the more precious and valuable the pendant will be. Also, different gold colors will help make your key pendant standout from others. Look for pink gold key pendants as an alternative to the standard white or yellow gold.