Some Interesting Finds in Tucson
Blue chalcedony is not a gem that the GemGuide normally researches, but in Tucson was a dealer selling Ethiopian blue chalcedony that was of the finest we have seen.
Gem NotesThe Trade of Appraising
The ideal stability on the appraisal teeter totter would be to have a professional valuator on each side or having both ends worked by trade appraisers. Here one can expect consistency in valuation approach.
The Appraiser's NotebookColor Filters: Useful Tools that Gemologists Should Use But Often Don’t
All qualified gemologists will have encountered color filters. This ‘encountering’ may take place during their gemological studies and might be as far as they get. They are losing attention and though there are obstacles, we should return to their teaching.
Gem TestingConstantin Wild: Gems, Colors & Wild Stories
This is a unique book in the way it was produced and laid out. The last book that I reviewed for the GemGuide was on the collection of gems and jewelry of the Smitsonian Museum in the USA. This is a perfect followup
Book ReviewLarge Colored Stones
The GemGuide Market Trend article typically covers a single gemstone that has shown an interesting trend in demand and/or price. However, this report presents a trend that is more general in nature. Such an observation has been made lately and was mentioned by several gem dealers following Tucson gem shows. That is that big and bold gemstones are getting increasingly popular.
Market TrendsGemworld Live Webinar Series: Market Update
The global gem trade experienced unprecedented challenges in 2020 and 2021. Mining, manufacturing and distribution sectors were all severely impacted by coronavirus shutdowns. As a result, many gems went up in markets with supplies so limited. There are still many unknown questions regarding the trends for the year ahead. The team at Gemworld has been tracking prices
Colored Stone MarketGem Focus February 2022: Blue John of England
Fluorite with its bright colors and contrasted banding in aggregate form is a favored carving material. While mineral collectors are attracted to its large, transparent single crystal specimens, the same crystals are faceted for both collectors and jewelry designers, especially in vivid colors.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus January 2022: Mother of Pearls
A practicing gemologist should be aware of many imitations and treatments of mother-of-pearl, despite its abundance and inexpensive existence in the market.
*Gem Focus & Market Pulse (Free Subscriber)Treatment Disclosure and Other Notes from the Eastern Front
I devoted several pages to the subject of treatment disclosure and why it was not just a “swell idea,” but necessary to the very survival of the natural gem trade.
Featured ArticlesDiamond Market News
In what is an unprecedented recovery over the prior two years of COVID-19 the diamond market has gained faster and recovered more than any of the other luxury markets and it continues to capture the largest share of expendable income dollars.
Diamond Market