| Month | Modern Birthstone[2] | Alternate | Traditional Birthstone[3] |
|---|---|---|---|
| January | Garnet | Rose Quartz | Garnet |
| February | Amethyst | Onyx | Amethyst |
| March | Aquamarine | Red Jasper (Bloodstone) | Bloodstone, Jasper |
| April | Diamond | Rock Crystal (Quartz) | Diamond, Sapphire |
| May | Emerald | Chrysoprase | Emerald, Agate |
| June | Pearl (the only non-mineral), Moonstone | Alexandrite | Alexandrite, Emerald |
| July | Ruby | Jade or Carnelian | Ruby, Onyx |
| August | Peridot | Aventurine, Sardonyx, or Sapphire | Sardonyx, Carnelian |
| September | Sapphire | Lapis lazuli | Sapphire, Peridot |
| October | Opal | Pink Tourmaline | Tourmaline, Aquamarine |
| November | Yellow Topaz | Citrine or Turquoise | Citrine, Topaz |
| December | Turquoise, Blue Topaz | Lapis Lazuli or Tanzanite | Zircon, Ruby |