Ruby Buying Guide
Our ruby buying guide can help you learn how rubies are graded, what to avoid, and how to identify a high quality stone or a bargain in the rough.
8 Minute Read
Related Articles
Ruby Gemstone Value, Price & Jewelry Insights
Discover everything about ruby gemstones — from value factors and origins to care tips. Learn what determines ruby prices and...
Read More
10 Gemstones Rarer than Diamond: The Earth’s Scarcest Treasures
Are you looking for something truly unique for your next jewelry purchase? Explore these ten gemstones that are actually rarer...
Read More
The History of the Verneuil Method: Pioneering Lab-Grown Crystal Technology
Discover the history of the Verneuil method, the pioneering technique that revolutionized the production of lab-grown rubies and sapphires, making...
Read More
Ruby and Sapphire Origins
Ruby and sapphire origins greatly affect the values of these prized gems. Learn where these stones occur and how inclusions...
Read More
Latest Articles
Alexandrite Buying Guide
Vivid color change makes alexandrite one of the world’s most coveted stones. Our alexandrite buying guide can help you find...
Read More
Cabochon Carving Tools and Techniques
Whether you're creating a simple gem accent or an exquisite cameo, the tools and techniques of cabochon carving are the...
Read More
Milarite Value, Price, and Jewelry Information
Very rare milarite crystals can occur in green and yellow colors. Transparent material can yield small but pleasant looking faceted...
Read More
Appraising Pearls: How to Grade Pearls
Novice gemologists and jewelers may find appraising pearls difficult. Our guide will show you how to appraise and grade different...
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!