Color Change Sapphire Value, Price, and Jewelry Information

Ruby and sapphire origins greatly affect the values of these prized gems. Learn where these stones occur and how inclusions...

Black is a color that can say a lot. Wearing black diamond jewelry communicates a sense of unique strength and...

Professionals will tell you never to trust a trade name used to describe the appearance of a fancy colored diamond....

Diamonds with a pure gray hue are a rare treasure indeed. More often, gray is mixed with blue or violet...

As Mogok, Myanmar prepares to celebrate its 800th anniversary, the inhabitants of this prolific gem producing region face an uncertain...

What’s the average gemstone faceting yield from a single piece of rough? Learn how to estimate how much material you’ll...

Pyroxmangite grains are rare, seldom clean enough to facet, and difficult to cut. However, when cut, they are extremely beautiful...

Gemologists can separate natural emeralds from emerald simulants and synthetics. Learn about the most common tools and techniques for this....