Sapphirine
Sapphirine is a mineral species, magnesium aluminum silicate. Sapphirine. Gemworld's Gem Note
Gem NotesInside Out: GEM•ology Through Lotus-Colored Glasses
GEM•ology Through Lotus-Colored Glasses, Gemworld Book Review. nning! That was my reaction as I turned the pages of the latest collaboration from the Lotus GEM•ology team. Inside Out: Gemology Through Lotus-Colored Glasses is an important story told via the micro and macro photography of three of gemology’s greatest experts—if you’ll accept the premise that at the heart of gemology is something far more important than learning the physical properties of stones.
Book ReviewPadparadscha
The unusual combination of pink and orange in one variety resembling an exotic sunset or a lotus flower puts padparadscha in the rare sapphires, arguably the rarest, category.
Market TrendsColored Stone Market – November 2019
The outlook for the holiday season is cautious. Colored stone price levels held firm during an otherwise lackluster Hong Kong show. Color outperforming other areas of the jewelry trade. Price points continue to shift in response tighter spending by millennials.
Colored Stone MarketGem Focus October 2019: Tourmaline
Tourmaline: The Mineral that comes in every Imaginable color.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus September 2019: Blue Sapphire
Blue Sapphire: The Backbone of the US Colored Stone Industry. Corundum is an aluminum oxide mineral that occurs in the earth’s crust in abundance. It has been known as a common abrasive called “emery” when…
*Gem Focus & Market Pulse (Free Subscriber)PRAISIOLITE VS GREENED AMETHYST VS GREEN AMETHYST
What’s in a name? There are many instances in our industry where multiple names for the same gem exist either through trade names or color descriptions to make things “simple.” A few examples are tsavorite…
Gem NotesColored Stone Market
Challenges are affecting global appetite for gem products. Prices stable for finer quality natural gems. Bumpy road ahead but long-term outlook pretty positive. Mining sector fast to respond to current economic conditions. Confidence solidly behind…
Colored Stone MarketCobalt Spinel
Spinel is a magnesium-aluminum silicate that forms in the cubic system. While most gemologists are only aware of gem quality, transparent spinels, it is, in fact, a solid solution series with many different species that…
Market TrendsSUMMER SLOWDOWN— OR IS IT MORE OMINOUS?
Traditionally at this time of year we expect a general slowdown in the diamond trade. Summer holidays and industry shutdowns generally lead to reduced activity in the market. This has always taken place at this…
Diamond Market