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 guide.
7 Minute Read
Related Articles
Paraíba Tourmaline Value, Price, and Jewelry Information
Discovered in 1989, paraíba tourmalines are among the world’s most prized gemstones. These rare gems are renowned for showing intense...
Read More
Tourmaline Gem, Price, and Jewelry Information
Tourmaline is a name applied to a family of related minerals with widely varying properties. Tourmalines make very popular jewelry...
Read More
Rubellite Tourmaline Value, Price, and Jewelry Information
Rubellites are tourmalines with reasonably saturated dark pink to red colors and medium to dark tones. They make excellent jewelry...
Read More
Mint Tourmalines: Gemstones for Our Times
Mint tourmalines, with their pastel shades and great clarity, are becoming more popular. Learn why these gems are well-suited to...
Read More
Latest Articles
Celebrity Engagement Rings
What stones are the trendsetters using to pop the question? Take a look at the diamonds and colored gems in...
Read More
Ruby and Sapphire Grading Tools
What ruby and sapphire grading tools does a novice gemologist need? Learn how basic gemological equipment can help you identify...
Read More
Cerussite Value, Price, and Jewelry Information
As beautiful as a diamond, a faceted cerussite actually has higher dispersion and usually excellent transparency, colorless or light body...
Read More
Ouro Verde Quartz: History and Treatment
Ouro Verde quartz, also known as lemon quartz, is a popular treated stone. Learn how experiments with other gems led...
Read More
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get Gemology Insights
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!