Tourmaline is known as the gem of love and commitment. Buy her a pair of pink tourmaline earrings to seal the deal! A pair of emerald earrings are a timeless and classic accessory. You can choose from genuine emerald, or more affordable lab-created emerald. Garnet has been known as a gift of love since the time of the ancient Greeks. A pair of garnet earrings are an excellent gift for an anniversary or January birthday.