When it comes to Pandora's charms for this year, the Signature Heart Birthstone charms are surely a favourite. The signs are moulded in every detail to project the astrological aspect of a zodiac sign. Each charm is unique with just the right touch of sparkle to bring it to a whole new level. The Signature Heart Birthstone is the perfect gift for 2016 for a lady who has a penchant for all things tied to stars.