jewelry

Problem gem rough can challenge novice faceters. Learn how to judge colors so you can orient such a stone and cut for the best color in the finished…

Master tanzanite buying with our expert guide covering the 4 Cs, treatments, simulants, and investment tips. Learn to identify quality tanzanite…

Explore our comprehensive standard gem sizes chart to determine if your gemstone will fit standard settings and learn how to estimate gem weight…

To make money, novice faceters have to buy gem parcels as well as hand-picked quality rough. Learn how a combination of both approaches can lead…

Whether you’re creating a simple gem accent or an exquisite cameo, the tools and techniques of cabochon carving are the same. Get started with this…

What makes diamonds so expensive? And who decides how much they cost? Why do two diamonds with the same grades in the Four Cs have different prices?…

Diamonds have a rich history. The earliest diamond deposits date back 900 million years. To put that into perspective, the Earth is approximately…

We tend to take light for granted. It’s such a common thing we experience every day. Rarely do we think of the scientific definition of light…

Step 4: Gem Grading Lesson 10 Back to syllabus Distinguishing diamonds from their lookalikes is a prerequisite to diamond grading. Assigning…