Article: Beware - Lead-Glass Filling in Colour-Change Sapphire

From Gems & Gemology: Lead-Glass Filling in Colour-Change Sapphire

Gagan Choudhary of the Gem Testing Laboratory in Jaipur, India, submitted the following report to Gems & Gemology's (G&G) Gem News International section:

Lead-glass-filled rubies were first seen in the market in 2004. Much research has since been conducted to classify these rubies correctly, and the treatment is now well understood. We also know, though, that such fillings are now being applied to sapphires...

Article - Beware - How To Spot A Counterfeit Gem

There are more counterfeit gems in the jewelry market today than ever due to more ways of making them appear real. Learn how to spot them!

There are more counterfeit gems in the jewelry market today than ever due to more ways of making them appear "real". Knowing what different deceptive means dealers use to pass off fake gems as real ones can help you avoid getting swindled.

There is a difference in value between gems which are natural or made by nature and those that are synthetic or made by man. There is also imitation gems which are different than both natural and synthetic. There is a big difference in value and price between these three types of gems sold...

Article - Beware - Gemstone Rip Off Scams, what to avoid?

Gemstone Rip Off Scams, what to avoid?

So you are considering buying some gem stones? It maybe the first time you have ever bought a gem stone and you are not too sure what to look for? What gem stone do you select? What questions should you be asking? After all you don’t want to be riped-off. So how do you know if a gem stone is a fake or...