Sapphire

How much are rubies worth? The best rubies are some of the most expensive colored gemstones on the market. One example is the 55.22 ct. Estrela de…

Spinel has been on quite a dramatic ride! Confused with corundum for centuries, it was only identified as an independent species of gemstone in…

There are plenty of great alternatives to mined diamonds available, beautiful white gemstones both natural and lab-made. Learn about different…

The simple 10X loupe fits in your pocket and costs less than any other piece of gemological equipment. You’ll learn more with it than any other…

When choosing gemstones for jewelry, it’s crucial to understand more than just how beautiful a stone looks. Gemstone hardness and wearability…

Disclosing enhancements is one of the most important responsibilities gemologists face. In fact, many countries are passing stricter laws…

Zircon sources can be found all over the world. The mineral zircon can occur in many different geological environments. However, only a small percentage…

Despite fantastic colors, brilliance, and dispersion, zircon is an often overlooked gemstone. However, zircon is a remarkable mineral with…

Some well-known jewelry stones owe their colors to the effects of radiation. Occasionally, gemstones receive radiation treatment in laboratory…