Sphalerite Buying Guide
Our sphalerite buying guide can help you learn how these gems are graded, what to avoid, and how to identify a high quality stone or a bargain in the rough.
3 Minute Read
Related Articles
Sphalerite Value, Price, and Jewelry Information
Sphalerite occurs in many colors. With a dispersion over three times that of diamond and an adamantine luster, faceted specimens...
Read More
Sphalerite Appraisal
Learn what factors most influence a sphalerite appraisal and what kind of jewelry will best showcase this beautiful gemstone.
Read More
Quahog Pearl Buying Guide
Your next plate of steamed clams might hold a rare quahog pearl. Learn how to judge the quality of these...
Read More
Melo Pearl Buying Guide
Bright orange colors and flames that seem to dance across the surface make the melo pearl a fascinating gem choice....
Read More
Latest Articles
Precision Faceting a Story Gemstone: Custom Faceting Advice
Your prized gemstones deserve custom faceting. Learn the benefits of working with precision faceters and tips for starting your own...
Read More
Aquamarine Enhancements
The most common aquamarine enhancements try to turn blueish green stones pure blue. Learn how heating and other aquamarine treatments...
Read More
Top Five Gemstone Investments for 2024
What are the top gemstone investments for 2024? Learn why these five gems, some well-known and some less so, are...
Read More
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
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!