sapphire

Opals and pearls have special setting, cleaning, and storage needs. Our opal and pearl care guide will help you keep your jewelry beautiful.

In brighter light, such as sunlight, this tourmaline looks like a deep blue sapphire with a secondary green tone. I purchased the rough stone from…

Gem faceters and jewelry enthusiasts alike should learn about gemstone toxicity. This table has toxicity ratings for 280+ gems, based on their…

Introduced in 1960, the classic princess by A. Nagy was an economical cut for flat diamond crystals. However, this popular design doesn’t lend…

Although many gems show a cat’s eye effect, when the term “cat’s eye” is used alone, it always refers to the rare gemstone chrysoberyl.…

Discover the rare and mesmerizing alexandrite gemstone. Learn all about the incredible color-changing properties, value factors, and origins…

We’ve tallied your opinions from our gem treatment survey. Are treated gems natural? How much should they cost? With a wide variety of attitudes…

A “Money Cut” is a gem design that’s fast and easy with great performance. That’s what Jeff Graham’s Light House cut is all about. This…

Jeff Graham’s SweetHeart cut shows great flash and dispersion. It’s a good choice for novices trying to cut their first heart design and experts…