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CVD-Grown Synthetic Diamonds, Part 2: Properties
The physical properties of CVD synthetic diamond fall well within the range for natural diamonds in terms of hardness, thermal conductivity, strength, and so forth. Therefore, CVD synthetics are as hard and durable as natural diamond and display the same brilliance and fire when cut as a gemstone.
Undisclosed Samples of Large CVD Synthetic Diamond
In mid-2012, one of the international diamond grading laboratories in Antwerp reported undisclosed CVD synthetic diamonds, causing a stir in the diamond industry.
Three CVD Synthetic Diamonds Submitted to Mumbai Laboratory
The gemological and spectroscopic characteristics of these type IIa synthetic diamonds suggested that they experienced different growth and/or treatment histories.
African Students Discover the Wonder of Gems
Students in South Africa and Botswana are introduced to gemology, mineralogy and geology in GIA's Junior Gemologist Program.
CVD Synthetic Diamonds from Gemesis Corp.
An examination of the gemological and spectroscopic properties of CVD synthetic diamonds from Gemesis Corp.
Recent Advances in CVD Synthetic Diamond Quality
A survey of recent advances in CVD synthetic diamond quality.
GIA’S Symmetry Grading Boundaries for Round Brilliant Cut Diamonds
A presentation of parameters used to support GIA's symmetry grading system.
Industry Experts Share Encouraging Advice with Job Seekers
Gem and jewelry industry experts shared words of advice offered to job seekers at GIA’s 20th annual Jewelry Career Fair on Oct. 22, 2010.
Gem Localities of the 2000s
The past decade saw some impressive discoveries of diamonds and colored stones.
The Wittelsbach-Graff and Hope Diamonds: Not Cut from the Same Rough
Two historic blue diamonds, the Hope and the Wittelsbach-Graff, appeared together for the first time at the Smithsonian Institution in 2010.
GIA Reveals World of Gemstones to Crime Investigators
What do GIA and international crime investigators have in common? FBI Special Agent Daniel McCaffrey shares details on how the FBI has caught gem and jewelry thieves
Update on Ametrine from the Yuruty Mine, Bolivia
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
