Pick your birth month. Get a gemstone. The rock has opinions.
By Marcus VanceA tradition, not a certificate of authenticity.
Each calendar month has a traditional birthstone attached to it, a custom that solidified in the early 20th century when the American National Retail Jewelers Association codified the list. Pick your birth month above to see the stone this calculator returns, its symbolic meaning, and its color.
The full table this tool draws from runs: January is Garnet (protection, friendship, deep red); February is Amethyst (calm, clarity, purple); March is Aquamarine (courage, serenity, pale blue); April is Diamond (love, strength, clear); May is Emerald (rebirth, growth, green); June is Pearl or Alexandrite (purity, balance, white or color-shift); July is Ruby (passion, vitality, red); August is Peridot (strength, good fortune, lime green); September is Sapphire (wisdom, loyalty, blue); October is Opal or Tourmaline (hope, creativity, iridescent or varied); November is Topaz or Citrine (warmth, abundance, golden); and December is Turquoise or Zircon (luck, protection, blue). Enter your birth month above and the calculator pulls straight from this list, no randomness involved.
Worked example: someone born in October gets Opal or Tourmaline back, with "hope, creativity" as the meaning and "iridescent or varied" as the color, because month 10 maps directly to that row in the table. Someone born in April instead gets the single-stone answer Diamond, since April is one of the nine months without a listed alternative.
The modern list traces back to a 1912 meeting of American jewelers who standardized what had previously been a looser, more regional custom; some of the assigned stones follow older biblical and astrological associations, while others were added later mostly for affordability and availability. That history is why a handful of months ended up with two stones instead of one: newer, cheaper alternatives were added without dropping the historic gem.
Color is the other constant this tool reports alongside the stone and its meaning. Reds and blues dominate the list (Garnet, Ruby, and Sapphire all lean toward those two families), while a few months break the pattern entirely: Peridot's lime green and Turquoise's blue-green are the outliers most people remember once they have looked their own month up.
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The official list has been updated a few times since 1912, with trade groups adding affordable alternatives alongside the original gems.
This uses the widely recognised modern list, the one most jewellers and gift shops default to.
Yes. Ayurvedic, Tibetan, and other traditions assign different stones to different months. This uses the Western modern list.
No. Gemstones do not have verified metaphysical properties. This is for curiosity, not therapy.
