Add some color and personality to your collection of Waxing Poetic charms by adding sterling birthstone charms. Add yours or maybe someone you love's birth month stone. Measures 5/8". See our Waxing Poetic Necklaces and other charms to accessorize your birthstone. Add your initials or initials of those you love! Waxing Poetic Square Sterling Charms, Waxing Poetic Sterling Baby Insignia Alphabet Charms, or Waxing Poetic Sterling Round Insignia Alphabet Charms.