Gemstone luminescence is a glow that occurs when certain stones are subjected to energy such as UV light. This effect can help gemologists identify gems.
Everything you ever wanted to know about amethyst. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.
Visit one of the top gem hunting spots in the US. Go alone or with the family. A gemology-themed vacation can be fun, educational, and (maybe) profitable.
Everything you ever wanted to know about bloodstone. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.
The February birthstone, amethyst has many popular symbolic and folkloric associations both ancient and modern, from love and spirituality to supernatural protection. Read on to learn more about amethyst symbolism and legends and find some inspiration for your own jewelry pieces.
With bright, apple-green hues, chrysoprase makes an attractive, eye-catching jewelry stone. If you’re looking for a top-quality gem, read this guide before your chrysoprase buying trip to help you choose the best gem for your project.
Silky golden rutile inclusions in quartz have become quite popular. Read our rutilated quartz buying guide to help you choose a stone for your next project.
Satisfying the human desire for symmetry, trapiche gems have a special allure. Learn what makes these rarities so unique in our introductory article.
Citrine’s affordable autumn hues make it a great option for trendy jewelry. Read about the quality factors for this stylish gem in our citrine buying guide!
Natural and synthetic quartz rough are both inexpensive. Nevertheless, learn why novice faceters should practice with the natural material in most cases.