Category: Featured Articles

Andesine Update

In 2005, a Market Trends segment in the GMN tilted Andesine: The Next Paraiba? reported on the buzz building in the industry around this intensely red colored plagioclase feldspar appearing in the market in small quantities…

NRC Comes to Tucson

On Friday February 8, 2008 the American Gem Trade Association (AGTA) in cooperation with the Jewelers Vigilance Committee (JVC) presented an important presentation on irradiated gems in the Leo Rich Theater on the grounds of…

Coated Gems

In the early days, there were the foil backs. These synthetic stones, often nothing more than glass, had a gold colored foil coating on the pavilion that theoretically made the stone look more diamond-like. The…

Falling out of Favor

In the early part of the 1990s, a strong presence was seen in the marketplace for low commercial diamonds. Supply was good, prices were low, and consumers seemed willing to sacrifice quality for price. By…

Burma: Shades of Grey

In late August, Buddhist monks numbering in the hundreds, joined prodemocracy activists in protesting hardships faced by the greater population of Myanmar (herein after identified in this article by its proper name Burma) due to…

Tanzanite

Tanzanite is a relative newcomer as far as gems go. Discovered in 1967 in the African nation of Tanzania, the initial pocket of mate- rial was quite small. Many stories are tied to its discovery…

Blue Topaz Update

Acting on a complaint earlier this summer, the NRC informed retail jewelers that they may be selling blue topaz in noncompliance with NRC regulations. The NRC letter also purportedly requested the names of the retailers…