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How to Recognize Good Gemstone Faceting
March 5, 2013 | YouTube

This short video by John Dyer explains the characteristics of well-cut and poorly-cut faceted gemstones. Beautiful faceted stones are a combination of great mineralogy and great craftsmanship.


  Related Stories

Fancy Vivid Pink Diamond Sells for $83 Million
November 19, 2013 | Bloomberg
A fancy vivid pink diamond weighing 59.60 carats was sold last week in Geneva for $83 million. That is the highest price ever paid for any gemstone at auction. Related: How do diamonds form?

Coloured Gemstone Deposits in the Yukon
December 10, 2013 | Yukon Geological Survey
Nice publications on the geology of gemstones are rare. Here is a nice open file report from the Yukon Geological Survey. It is Open File Report 2004-10, "EXPLORATION CRITERIA FOR Coloured Gemstone Deposits in the Yukon" by Lori Walton.

Ametrine
October 13, 2013 | geology.com
Ametrine, a combination of amethyst and citrine is a bicolor quartz and a gemstone of growing popularity. It is produced commercially from just one mine in the world, located in eastern Bolivia.


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