With only a few produced each year, pink diamonds are among the rarest gems on the planet. Learn how quality impacts cost for these rarities in our fancy colored pink diamond buying guide.
Blue diamonds are among the rarest and most prized diamonds. Our blue diamond buying guide will help consumers understand the value factors for these gems.
How well do you know your birthstone gemology? Take our short quiz and learn about the composition, cutting, and value of birthstones.
What constitutes a princess cut? Jeff Graham examines a variety of diamonds sold as examples of this design and identifies their overall characteristics.
Fancy colored yellow diamonds are becoming increasingly popular. Our yellow diamond buying guide has the information you need before your next purchase.
Mechanical gemstone cleaning has benefits and risks. Learn all about ultrasonic, steam, and boiling systems and how gems might react to them.
Diamonds are popular gemstones surrounded by popular misconceptions. We'll tell you how they became so prized and debunk some of those diamond myths, too.
Colorado has a lot to offer gemologists and rock hunters. Before you visit, learn about Colorado gemstones as well as notable gem shows, museums, and clubs.
How can you evaluate diamond symmetry without an expensive proportion scope? Learn how to build an inexpensive alternative tool that will get the job done.
First-time gem buyers may find diamond grades confusing. Our consumer guide explains how diamonds are evaluated and gives advice on how to choose a diamond.