Gemstone Library
Gemstones & the Zodiac
Zodiac Signs & Stones
Astrology has allocated certain gemstones to each of the zodiac signs. In some cases, these coincide with the same stone as for the monthly birthstone charts, in others they differ. As with monthly birthstones, there are many differing opinions as to the appropriate gemstone for each sign. We will be adding further to this page later, with alternatives.
Zodiac Gemstone Symbol Glyph Planet From To
Aquarius Garnet Water Carrier Uranus January 20 February 18
Pisces Amethyst Fish Neptune February 19 March 20
Aries Bloodstone Ram Mars March 21 April 20
Taurus Sapphire Bull Venus April 21 May 20
Gemini Alexandrite Twins Mercury May 21 June 20
Cancer Emerald Crab Moon June 21 July 20
Leo Onyx Lion Sun July 21 August 21
Virgo Cornelian Virgin Mercury August 22 September 22
Libra Chrysolite Scales Venus September 23 October 22
Scorpio Beryl Scorpion Pluto October 23 November 22
Sagittarius Topaz Archer Jupiter November 23 December 20
Capricorn Ruby Goat Saturn December 21 January 19

Color
Gemstone Cut
Gemstone Shape
Gemstone Glossary
Proper Care of Gemstones
Hardness
Refractive Index
Crystal Structure
Density
Chemical Composition
Gemstome Weight Chart
Metric to Inch Conversion Chart
Diamond Weight Chart
Gemstones & Zodiac
Recommended Gem Books
Ruby
Sapphire
Tourmaline
Other Gemstones