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Adopted 1912 |
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Similar color |
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| Month |
Modern Era |
Traditional |
Semi Precious or Stone |
| January |
Garnet |
|
Garnet |
|
Ruby/Rose Quartz |
| February |
Amethyst |
|
Amethyst |
Amethyst |
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| March |
Aquamarine |
Bloodstone |
Blue Topaz |
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| April |
Diamond |
|
Diamond |
Clear Quartz |
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| May |
Emerald |
|
Emerald |
|
Green Garnet |
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| June |
Pearl/Moonstone |
Alexandrite |
Pearl/Moonstone |
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| July |
Ruby |
|
Ruby |
|
Garnet, Ruby Quartz |
| August |
Peridot |
|
Sardonyx |
Peridot |
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| September |
Sapphire |
|
Sapphire |
Lapis Lazuli, Crystal |
| October |
Opal/Tourmaline |
Tourmaline |
Opal/Tourmaline |
|
| November |
Yellow Topaz |
Citrine |
|
Citrine |
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| December |
Blue Topaz/ |
Lapis Lazuli/ |
Lapis Lazuli/Turquoise |
|
Turquoise |
|
Turquoise |
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