Silver Birthstone Earrings May Emerald. These birthstone earrings are a beautiful collection of different coloured crystals, which each correlate to one month of the year, and will hold meaning that is true to the wearer. Crafted in sterling silver and featuring a stunning polished finish, these birthstone earrings will make a special personalised gift or a great treat for yourself! Pair with the matching necklace or ring for a co-ordinated look or stack with our other silver earrings for a truly personalised look!