Gemstone Education

Gemstone Education

Gemstones A-Z

A free informational reference guide to gemstones

  • Alexandrite
      June Birthstone : The Alexandrite was discovered in 1830 in Russia's Ural Mountains. Often descirbed as "emerald by day, ruby by night," alexandrite is a very rare color changing stone of green, brown or purplish red. Alexandrite is also the gem for the 55th wedding band. (GIA)
  • Amber
    Amber: While amber isnt a birth stone, it is associated with the astrological sign of Tauras. Amber is a organic gem. Organic gems are products of living or once living organisms and biological processes. Amber formed 10 million of millions of years ago, when sap from ancient trees hardened and fossiled.The oldest amber dates back 320 million years ago (GIA)
  • Amethyst
    Februrary Birthstone: Amethyst was as expensvie as ruby and emerald until the 19th century, when Brazil's largest deposit where discovered. It was believed to prevnt intoxiation-amethystos  means "not drunk" in ancient Greek. Amethysty is not only the Februrary birthstone but the gem for the 6th and 17th wedding anniversary (GIA)
  • Ametrine  
    Wether projecting from pegmatite walls or encrusted cavities in volcanic rock, quartz abounds world wide. People have used quartz in jewelry for thousands of years. When quartz displays colors of amethyst and citrine in the single gemstone it is called ametrine or amyethist-citrine. Ametrine is only sourced in Anahi Mine in Boliva (GIA)
  • Aquamarine
    March Birthstone: Aquamirine's name comes from the latin for seawater and is said to calm waves and keep salors safe at sea. Marches birthstone is also thought to keep happiness of marriages. Aquamarine is mined at high elevations in Pakistan's Karakoram Mountains. This gem is also used for 19th wedding anniversary (GIA)
  • Citrine
    Along with topaz, citrine is the Novemeber birthstone and is recognized for being the gemstone for the 13th anniversary gift. Citrine is rare in nature. Citrine is recognized as one of the most popular and frequently purchased gemstones (GIA)
  • Diamond
    Diamonds are amoung nature's most precious and beautiful creations. Diamonds form under high temperature and pressure and pressure conditions that exist only 100 miles beneath the earths surface. Diamond's carbon atoms are bonded in essentially the same way in all directions. Diamonds are the hardest mineral on earth: 58 times harder then anything else in nature. A diamond is recongnized today as April's birthstone. Diamond is also the gem the marks the 60th and 75th wedding anniversary (GIA)
  • Fancy Color Diamond
    Dazzing Brillance. Captivating Color. The plant's most valued gems are fancy colored diamonds. Gem diamonds in GIA's range usually range from D-to-Z range usually decreases in value as color becomes more obvious. Just the opposite happens with fancy color diamonds. Their value generally increases with the strength and purtity of the color. Large, vivid fancy color diamonds are extremely rare and very valuable. Diamonds are the birth stone for April and the 10th and 60th anniversary (GIA)
  • Emerald
    Emerald is a blueish green to green variety of beryl, a mineral species that includes aquamarine. Gem experts differ on the degree of green that makes on stone and emerald and another a less expensive green beryl. Emeralds are mined in Africe, South America and Asia. As a gem of spring emerald is a perfect birthstone for May. It is also the gem for the twentieth & thiry-fifth anniversary. 
  • Garnet
    Garnet are a set of closely related minerals forming a group, with gemstones in almost every color. Red Garnet have a long history, but modern gem buyers can pick from an assorment of almost every color. Red garnet is one of the most widespread of the gems. But not all garnet is as abudant as red ones. A green garnet, tsavorite, is rarer and needs rarer rock chemistries and conditions to form. Garnet is the birthstone for January and 2nd anniversary (GIA)
  • Iolite
    According to ledgend , Vikings used to use Iolite to reduce glare when checking the sun's position. Iolite's name comes from Greek word ios, meaning violate. Iolite is not typplically treated. Iolite is the gemstone for the twenty-first wedding anniversary. 
  • Jade
    Jade is actually two seperate gems: nephrite and jadeite. In China, a pierced jade disk is a symbol of heaven. Jade is the offical gem for the 12th anniversary.
  • Kunzite
  • Lapis Lazuli
  • Moonstone
  • Morganite
  • Opal
  • Pearl
  • Peridot
  • Rose Quartz
  • Ruby
  • Sapphire
  • Spinel
  • Sunstone
  • Tanzanite
  • Topaz
  • Tourmaline
  • Turquoise
  • Zircon


Green in sunlight. Red in lamplight. Color-changing alexandrite is nature’s magic trick.


Often described by gem aficionados as “emerald by day, ruby by night,” alexandrite is the very rare color-change variety of the mineral chrysoberyl. Originally discovered in Russia’s Ural Mountains in the 1830s, it’s now found in Sri Lanka, East Africa, and Brazil, but fine material is exceptionally rare and valuable.


Alexandrite is a birthstone for June, along with pearl and moonstone. Alexandrite is also the gem for the 55th wedding anniversary.


Follow Us

Map Link