GEMS & GEMOLOGY JOURNAL

Dive Into Spring: Investigations into Corundum and Beryl Color, Jade Artistry, the Chivor Emerald Mine’s History, and Swiss Rhodonite…

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CITRINE

Citrine is rare in nature. In the days before modern gemology, its tawny color caused it to be confused with topaz. Today, its attractive color, plus the durability and affordability it shares with mos...

PERIDOT

The ancient Egyptians mined peridot on the Red Sea island of Zabargad, the source for many large fine peridots in the worlds museums. The Egyptians called it the gem of the sun. Today this gem is still...

EMERALD

Gem experts differ on the degree of green that makes one stone an emerald and another stone a less-expensive green beryl. Most gemologists, gemological laboratories, and colored stone dealers call a st...

FANCY COLOR DIAMOND

Gem diamonds in GIAs D-to-Z range usually decrease in value as the color becomes more obvious. Just the opposite happens with fancy color diamonds: Their value generally increases with the strength and...

DIAMOND

Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earths surface. Diamonds carbon atoms are bonded in essentially the same way in all directions. ...