James Allen Review
Launched in 2006, online jewelry retailer James Allen is a disrupter in the diamond market that seeks to educate buyers on diamonds and colored…
Color Grading Fancy Colored Diamonds
The color grading standards for white diamonds don’t apply to fancy colored diamonds. Learn the GIA and Argyle grading systems and how to find signs…
Tourmaline Gem, Price, and Jewelry Information
Discover tourmaline’s stunning colors, value, and properties. Learn why this October birthstone makes exceptional jewelry and how to identify…
Verdelite (Green Tourmaline) Buying Guide
Looking for a tourmaline jewelry stone? If you like green and you’re on a budget, green tourmaline or verdelite is the gem for you.
Tourmaline Buying Guide
Known for stunning, saturated hues, tourmaline is a colorful and modern gemstone. Read about quality factors for this gem in our tourmaline buying…
A View of the Quartzsite Gem Shows
The Quartzsite gem shows attract gemologists and rock hounds from around the world. Learn what to expect and how to shop at these huge annual January…
Gems Of East Africa – Mine direct gemstone suppliers
We are GEMS OF EAST AFRICA, a London UK-based gemstone dealer with our own buying office in Tanzania. Suppliers to the global gem community since…
Combining Stones in Jewelry
Combining stones can be more than adding diamond accents to colored gemstone jewelry. Explore colored stone combos and learn how to set gems within…
Identifying Synthetic Diamonds
Although most manufacturers disclose their synthetic diamonds, some resellers don’t. Learn how to identify these lab-created diamonds.…
IGS Become Member