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 ArticlesAfter 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 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 ArticlesIn 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 ArticlesIn 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 ArticlesIn this comprehensive article, the author discusses thevalue factors of colored gems in five parts. This article looks at the first two parts. Future issues of the Gem Market News will continue the discussion, looking…
*Free Featured ArticlesGemguide/Gemworld featured on Worldwide Business with Kathy Ireland® to discuss their industry leading gem pricing & market information. What are the current trends that make it difficult to evaluate gems? https://www.youtube.com/watch?v=fIitwh5WQqE…
*Free Featured ArticlesThe Tucson 2015 Gem Show demonstrated that there are considerably more options than just the big three (ruby, sapphire and emerald) for buyers seeking fine quality gemstones. The availability of bigger and higher quality garnets…
*Free Featured ArticlesDuring a December trip to the 2012 GIT Conference in Bangkok, Thailand, the author purchased several blue stones claimed to be (Cobalt) Coglass filled sapphires. General observation seemed to confirm the blue sapphire color with…
*Free Featured ArticlesJadeite is a sodium aluminum silicate mineral which has a polycrystalline structure. The hardness is 6.5-7 on the Mohs’ scale, the average specific gravity value is 3.33, and the refractive index is approximately 1.66. The…
*Free Featured Articles