- Birthstones by Month (14)
- Cutting and Polishing (2)
- Gem Mining (7)
- Gemstone Book Reviews (5)
- Gemstone Healing (20)
- More Colored Gemstones (70)
- Synthetic Gemstones (3)
- Shop for Gemstone Jewelry
Gemstones from A to Z
Our gemstone tutorials cover buying advice, gemstone care and alert you to commonly used gemstone treatments and misrepresentations.
Value of Colored Gemstone Reports
Many organizations offer reports for owners and potential buyers of colored gemstones.
Mohs Scale of Mineral Hardness
The Mohs Scale can help you choose and care for gemstones.
Become a Savvy Gemstone Shopper
Hold off on that gemstone jewelry purchase until you understand which qualities to watch for when you go shopping.
Beware of Misleading Gemstone Names
Our translations help you understand the terms used to describe so-called gemstones.
Birthstone Jewelry by Month
Shop large collections of birthstone jewelry, all sorted by month to help you find the perfect styles.
Gemstone Fakes and Deceptions
Call them what you like: fake gemstones, imitations, or simulated gems -- they all have one thing in common, they look like the real thing, but do not have any of the physical characteristics of a real gem.
Common Treatments to Enhance Gems
Treated gemstones are usually a less expensive alternative to natural, high quality gems, but be sure you understand the treatments before you buy.
Natural vs Genuine, What's the Difference?
Some of the words used in jewelry ads can be confusing. Do you know the difference between natural, genuine and synthetic gemstones?
Birthstone Facts and Folklore
Certain gemstones have been linked to dates of birth for centuries. The specific gems and the folklore about them differed from one group of people to another, but they all believed that wearing your birthstone brought good luck. This article offers a snapshot look at modern birthstones, with links to more reading.
Buying Jewelry from Online Auctions
Tips to help you get the most from your online jewelry auction purchases.
Find a Gemstone in Your Favorite Color
Choose your favorite color and you'll find there's an affordable gemstone to match it perfectly.
How to Clean and Care for Colored Gemstones
Learn safe ways to clean and care for colored gemstones.