What Is Jade? Learn about the uses of jade. It has been used to make ornaments and tools for thousands of years..
Synthetic Diamonds
Synthetic Diamonds: Large, nearly-flawless diamonds are now possible with chemical vapor deposition.
Blood Diamonds
Blood Diamonds: They are illegally-traded diamonds. Learn about them and how the practice can be stopped.
Opal Photos
Pictures of Opal: See the difference between precious opal and common opal. Images of white opal, black opal, fire opal, boulder opal and more are shown in the collection.
Diamond: The Mineral
Diamond: Learn about the properties of diamonds and their many uses. Diamonds are much more than jewelry!
Ametrine Gemstones
Ametrine The Bicolor Amethyst Ametrine is the name used when a single crystal of quartz has zones of gemstone quality amethyst (purple) and gemstone quality citrine (golden) in contact with one another.
