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Sapphire
The name “sapphire” can also apply to any corundum that’s not ruby red, another corundum variety.
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Montana Yogo Sapphires’ Unique Gemology
A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
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Article
Diamond Market Forecast: Declining Credit, Soft Prices and Lab-Grown Diamonds
Despite the generally strong year for jewelry retail, the diamond industry continues to face problems with credit, spotty demand and soft prices.
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Large Pargasite Inclusion in Kashmir Sapphire
Unusually large prismatic pargasite inclusions observed in a Kashmir sapphire submitted to the Carlsbad lab for origin determination.
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Drill Hole in Heated Pink Sapphire
An unexpected manmade feature is found in a pink sapphire from Myanmar.
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Zircon Cluster in Ethiopian Sapphire
The presence of these zircon clusters might help separate Ethiopian sapphire from other basalt-related sources.
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Microscopic Observations of Blue Sapphires Treated with Heat and Pressure
A previously unreported microscopic feature could be a useful indicator for corundum treated with heat and pressure.
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Article
Season’s Sales: US Up 4% to 5%, But China Continues to Lag
The U.S. holiday season saw strong sales, but China continues to struggle. Plus: diamond market report and lab-grown diamond sales.
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US Holiday Season Opens Well, Despite Volatile Markets
The U.S. holiday shopping season is looking positive, despite signs that an economic slowdown may be coming in 2019. Plus, more auction sales records.
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Chipping Away at 1,109 ct Lesedi La Rona
Graff reveals the first polished diamonds produced from the Lesedi La Rona, one of the largest pieces of rough ever mined. Plus, other market news.
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Article
National Retail Federation Predicts a Cheery Holiday
The building blocks are in place for a strong 2018 U.S. holiday season. Plus, diamond market updates and upcoming auctions.
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