"In Chinese philosophy, the concept of yin yang is used to describe how seemingly opposing forces are interconnected and interdependent in the natural world, giving rise to each other in turn. Many natural dualities - e.g. dark and light, female and male, low and high - are cast in Chinese thought as yin yang. As also know to many people as a little bit of the other balances the other. So no one can live without." ~ from WikipediaA heart-shaped pendant is nice and all, but it's always extra-special-nice to give and receive something that carries a unique message.
This pendant (or keychain) set carries the birthstones of your beloved (or your bestie!!) and can have some personalization on the reverse.
Your bond is unique, the way you show it off should be, too!