Sapphire comes in many different colors, not just classic blue, as this set of 17 oval-cut sapphires demonstrates. It’s not just the September birthstone, either. If you’re a Taurus or named Paul, or if you were born in the 10 AM hour or on Thursday, you could make sapphire one of your alternative birthstones. 7.78 ctw, Sri Lanka and Myanmar. © Rob Lavinsky, www.iRocks.com. Used with permission.
Choose stones associated with zodiacal signs or months symbolic of angels. You can even forgo your birth month and pick a gem associated with the day of the week or hour of your birth.
Birthstones make popular personalized jewelry choices. For example, this pendant features the birthstones of family members. “Mother’s pendant…,” photo by gemteck1. Licensed under CC By 2.0.
Alternative Birthstones Based on the Signs of the Zodiac
| Zodiac Sign | Gem |
| Aquarius (January 21 – February 18) | Garnet |
| Pisces (February 19 – March 20) | Amethyst |
| Aries (March 21 – April 20) | Bloodstone |
| Taurus (April 21 – May 20) | Sapphire |
| Gemini (May 21 – June 21) | Agate |
| Cancer (June 22 – July 22) | Emerald |
| Leo (July 23 – August 23) | Onyx |
| Virgo (August 24 – September 22) | Carnelian |
| Libra (September 23 – October 23) | Chrysolite |
| Scorpio (October 24 – November 22) | Beryl |
| Sagittarius (November 23 – December 22) | Topaz |
| Capricorn (December 23 – January 20) | Ruby |
Note: the dates for the zodiac signs are tropical dates.
In the 19th century, the term chrysolite referred to yellow-green chrysoberyl as well as peridot and prehnite gems. However, that name is no longer used. (Chrysoberyl, peridot, and prehnite are all distinct gem species).
This peridot, cut from a pallasite meteorite found in Indonesia, features some needle-like inclusions — crystals trapped within the gem — that have an iridescent flash. Portuguese oval-cut, 0.29 cts, 4.7 x 3.6 mm. © The Gem Trader. Used with permission.
Alternative Birthstones Associated with Guardian Angels
| Month | Gem | Guardian Angel |
| January | Onyx | Gabriel |
| February | Jasper | Barchiel |
| March | Ruby | Malchediel |
| April | Topaz | Asmodel |
| May | Carbuncle | Ambriel |
| June | Emerald | Muriel |
| July | Sapphire | Herchel |
| August | Diamond | Humatiel |
| September | Jacinth | Zuriel |
| October | Agate | Barbiel |
| November | Amethyst | Adnachiel |
| December | Beryl | Humiel |
The ancient term carbuncle refers to any red gem. Historically, stones referred to as carbuncles were likely red garnets. Jacinth was likely either a transparent, reddish brown zircon or hessonite garnet, although the term sometimes referred to blue stones, too.
Spessartite garnet, 13.49 cts, cut by AGTA Spectrum Award-Winner Mark Kaufman. Jos, Nigeria. © Rob Lavinsky, www.iRocks.com. Used with permission.
Alternative Birthstones Based on the Names of the Apostles
If you share a name with one of the twelve apostles, this list may interest you. During the Middle Ages, many scholars associated each apostle with a gemstone. (Judas was replaced by Paul, who wasn’t one of the original twelve). Not surprisingly, different writers made different connections. Below, you’ll find one such list. Note, these choices have no connection to date or time of birth.
| Apostle | Gem |
| Peter | Jasper |
| Andrew | Garnet |
| John | Emerald |
| Philip | Carnelian |
| Bartholomew | Chrysolite |
| Thomas | Beryl |
| Matthew | Topaz |
| James | Sardonyx |
| Thaddeus | Chrysoprase |
| Simeon | Jacinth |
| James (the Younger) | Amethyst |
| Paul | Sapphire |
Sardonyx is a variety of chalcedony with red and white layers.
Clock or watch key with bezel-set sardonyx cabochon. Image courtesy of liveauctioneers.com and Brunk Auctions.
Alternative Birthstones Based on Birth Hour
| 1 AM | Smoky Quartz | 1 PM | Zircon |
| 2 | Hematite | 2 | Emerald |
| 3 | Malachite | 3 | Beryl |
| 4 | Lapis lazuli | 4 | Topaz |
| 5 | Turquoise | 5 | Ruby |
| 6 | Tourmaline | 6 | Opal |
| 7 | Chrysolite | 7 | Sardonyx |
| 8 | Amethyst | 8 | Chalcedony |
| 9 | Kunzite | 9 | Jade |
| 10 | Sapphire | 10 | Jasper |
| 11 | Garnet | 11 | Lodestone |
| 12 | Diamond | 12 | Onyx |
A bracelet made from lapis lazuli beads. Jewelry and photo by Deomar Pandan, KamayoJewelry.com. Licensed under CC By-SA 4.0.
Alternative Birthstones Based on the Day of the Week of Birth
In this system, each day of the week offers at least two choices.
| Birthstone | Day of the Week | Phenomenal Birthstone |
| Topaz | Sunday | Sunstone |
| Pearl, Rock Crystal | Monday | Moonstone |
| Ruby, Emerald | Tuesday | Star Sapphire |
| Amethyst, Lodestone | Wednesday | Star Ruby |
| Sapphire, Carnelian | Thursday | Cat’s eye |
| Emerald, Cat’s eye | Friday | Alexandrite |
| Turquoise, Diamond | Saturday | Labradorite |
Rock crystal is colorless quartz.
14k yellow gold cat’s eye men’s ring with pavé set diamonds. Cabochon-cut chrysoberyl, 8.78 cts. Photo courtesy of liveauctioneers.com and Golden State Auction Gallery, Inc.
Birthstones Based on Seasons
Perfect for those who really want to pick from the “Big Four” gemstones.
| Season | Birthstone |
| Spring | Emerald |
| Summer | Ruby |
| Autumn | Sapphire |
| Winter | Diamond |
Round brilliant emerald, 6.20 cts, 1.2 x 1.1 x 0.8 cm, near Kenticha, Oromia, Ethiopia. © Rob Lavinsky, www.iRocks.com. Used with permission.
Birthstone Advice
Feeling overwhelmed by the options? Maybe this makes it easier to understand why superstitious attachments to gems gave way to a more scientific approach. You could just appreciate gemstones for their physical and optical properties or simply their beauty. Try this birthstone gemology quiz.
However, many people still feel a strong mystical connection to gems. If you do, surely in the lists above you can find a birthstone that corresponds to you and feels right. You and your choice will likely withstand this happy little arena of birthstone madness.
Birthstones on display at the Royal Ontario Museum, Toronto, Canada. Photo by Bryce Edwards. Licensed under CC By 2.0.
IGS Newsletter
