6 Choices of Capricorn Birthstone

Capricorn people are practical achievers, and birthstones for Capricorn have been identified since antiquity. These Capricorn birthstones act as charm or lucky stone for Capricorn, mainly to support, as well as keep grounded, the ambitious nature of the zodiac sign. Do you know the different Capricorn gemstones? Here is a list of gemstones for Capricorn.

Capricorn Birthstones

  • Main: Ruby
  • Alternate: Garnet, Black onyx & Agate
  • Hindu: Onyx & Jet
  • Planetary: Lapis lazuli
  • Talismanic: Onyx


Besides being specifically recognized as zodiac stone for Capricorn, ruby is the traditional birthstone for December in the Arabic, Hebrew, Italian, Roman, as well as the Ayurvedic or old Indian calendar. This Capricorn birthstone is the red variety of corundum, which in another color would be otherwise called sapphire.

Ruby is believed to bestow peace of mind, courage and mental power. This Capricorn stone is indeed helpful to the ambitious Capricorn people in seeing them through in their endeavors. The Capricorn gemstone is also said to chase away impure thoughts and preserve chastity, helping to keep integrity in the potentially powerful Capricorn.


A magnificent ruby specimen
Source: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0


Garnet’s position as a birthstone for Capricorn is backed up by the fact that the gemstone is the birthstone in most ancient calendars for January, in which month Capricorn people are born. This Capricorn birthstone consists of a wide group of minerals that, while found in different colors, is most popularly known to be red. Red garnet is attributed with the power to enhance productivity, which is something that Capricorn people hold in high regard.


Besides being identified as zodiac stone for Capricorn — both in Western and Hindu astrology — onyx is also the talismanic gemstone for Capricorn. Talismans are amulets or other pieces of jewelry believed to give their wearer magical powers. Capricorn talisman is engraved on onyx. This Capricorn birthstone is a banded variety of chalcedony, the name onyx mainly being applied to chalcedony of black and white bands. As a zodiac birthstone, the Capricorn stone is specifically identified to be the black onyx.

Black onyx is a grounding stone, helpful not only to Capricorn, but to Leo as well, the two signs being the most ambitious of the zodiac. This Capricorn gemstone keeps the person grounded, giving him better control of himself as he goes about realizing his ambitions. See also The Black Onyx: Stone of Power.


While most closely associated with Gemini, agate is also a Capricorn birthstone. This Capricorn gemstone is the banded variety of chalcedony, which is the opaque to translucent variety of quartz. The banded Capricorn stone is believed to enhance prudence and caution, which to the responsible Capricorn are highly important. See also Agate: Stone of Prudence.

Lapis Lazuli

Lapis lazuli is the stone associated with Saturn, the ruling planet of Capricorn, and is hence the planetary stone for Capricorn. This Capricorn birthstone is a relatively rare rock occurring in a bright blue color. Lapis lazuli is believed to stimulate a heightened state of awareness and expand perspective, and hence keeps the ambitious Capricorn objective and firmly grounded to reality. The birthstone for Capricorn is also thought to chase away negative emotions, including fear and jealousy, and enhance creativity. See also Lapis Lazuli: Stone of Purity.


A great sample of jet
Source: Geni via Wikimedia Commons


Beside onyx, jet is the birthstone for Capricorn in Vedic astrology. Jet is not really a stone, but fossilized trees formed under high pressure over millions of years. This Capricorn birthstone is black, and gave birth to the term jet black, meaning “as black as can be.” The Capricorn stone —like most, if not all, black stones — is a grounding stone, roughly as useful to Capricorn people as black onyx. See also Jet: Stone of Restoration.

Sure You’re Capricorn?

Debate is on between the accustomed tropical zodiac and the accurate sidereal zodiac used in astronomy and Hindu astrology. See below for your sign in either zodiac.
Zodiac Sign
Tropical Zodiac
Sidereal Zodiac
ARIESMar 21-Apr 20Apr 14-May 13
TAURUSApr 21-May 20May 13-Jun 15
GEMINIMay 21-Jun 20Jun 15-Jul 15
CANCERJun 21-Jul 21Jul 15-Aug 16
LEOJul 22-Aug 22Aug 16-Sep 16
VIRGOAug 23-Sep 22Sep 16-Oct 16
LIBRASep 23-Oct 22Oct 16-Nov 15
SCORPIOOct 23-Nov 21Nov 15-Dec 15
SAGITTARIUSNov 22-Dec 21Dec 15-Jan 14
CAPRICORNDec 22-Jan 20Jan 14-Feb 13
AQUARIUSJan 21-Feb 19Feb 13-Mar 13
PISCESFeb 20-Mar 20Mar 13-Apr 13

Other Capricorn Stones

There are a few other stones deemed to be Capricorn birthstones, but these birthstones also belong to other zodiac sign. Hindu astrology has its own set of gemstones for Capricorn. Beside onyx and jet, Indian astrology identifies another black stone, snowflake obsidian, as Capricorn stone, yet this gemstone is closely associated with Scorpio in the same system of astrology. Quartz is also said to be a gemstone for Capricorn, but is likewise the birthstone of other signs, namely Aquarius and Leo. Vedic astrology puts carnelian as lucky stone for Capricorn, while the gemstone is known to be the main birthstone of Virgo.

There are other stones out there that contemporary people would tell you are birthstones for Capricorn. It comes down to your personal discretion if you accept these stones to be indeed Capricorn gemstones. These modern lucky stones for Capricorn include azurite, amber, fluorite, labradorite, peridot, smokey quartz, black tourmaline, green tourmaline, blue aragonite, magnetite, mahogany obsidian, chalcopyrite, malachite and idocrase.

Which Capricorn birthstone is your favorite?

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Published October 25, 2013Last updated July 1, 2016

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