Lab-Grown Diamond Screening
A laboratory-grown diamond, commonly referred to as "laboratory-created," "synthetic," "man-made," or simply "lab-grown," is a diamond that appears optically identical to natural diamonds.
*Free Featured ArticlesQuality Assessment of Natural Jadeite: Process and Tips for Appraisers
Most retailers and appraisers in the Western World lack the knowledge to judge the quality parameters and value of natural untreated jadeite. This is because natural jadeite material in all qualities is scarce in the western marketplace, and because they lack literary references to rely upon.
*Free Featured ArticlesEmeralds from Ethiopia
Emeralds are a welcome business for Ethiopia. The recently discovered gemstone deposits in Ethiopia contribute to the utterly needed economic growth of this East African nation. A few years ago, during an interview on international TV, a…
*Free Featured ArticlesA Colorless Nightmare
Melee diamonds may be the best example of the problem gemologist-appraisers face in this new struggle for gemological truth.
*Free Featured ArticlesMercury Free Mining: An Exquisite Opportunity to Make a Global Difference
The jewelry industry has a chance to make a real difference in the health and quality of life for millions of artisanal gold miners, their families and communities. Metallic mercury is a permanent, potent neurotoxin that is increasingly pervasive in the global environment. We can take action to reverse this trend.
*Free Featured ArticlesPrice Guides – Friend or Foe?
How convenient it is to use a price guide to retrieve prices for diamonds and colored stones. Merely adding a markup to determine a value seems too easy. Some gurus of valuation theory are emphatic that price guides should be banned. Other experts embrace price guides as a key part of the process.
*Free Featured ArticlesGreenland Ruby
After more than a decade, Greenlandic ruby has entered the market in commercial quantities. The combination of affordable pricing and traceable sourcing meet the needs of the current market climate. The flux healing of the…
*Free Featured ArticlesIdentifying and Valuing Old European Cut Diamonds
Identifying an old European cut diamond may seem simple but there is a set of GIA standards that determine from their perspective whether it is or is not. This set of standards is not widely…
*Free Featured ArticlesValue Factors, Design, and Cut Quality of Colored Gemstones (Non-Diamond)
In this comprehensive article, the author discusses the value factors of colored gems in five parts. Parts one and two appeared in Gem Market News, January/ February 2016, Volume 35, Issue 1. Parts three and four appeared in Gem…
*Free Featured ArticlesValue Factors, Design, and Cut Quality of Colored Gemstones (Non-Diamond)
In this comprehensive article, the author discusses the value factors of colored gems in five parts. Parts one and two appeared in Gem Market News, January/February 2016, Volume 35, Issue 1. What follows are parts…
*Free Featured Articles