Michael Cowing FGA
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| ACA GEMOLOGICAL LABORATORY | ||||||||||||||||
| This web site is developed by Gemologist Michael Cowing, MS, FGA, NJA as a forum for discourse on issues in the field of Gemology and precious gems; especially issues of interest to the diamond trade. After reading any of the articles or postings please click on the message board and enter your ideas, opinions and criticisms. | ||||||||||||||||
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| Diamond brilliance: theories, measurement and judgement Michael Cowing FGA |
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| Towards Reconciling Issues of Color Grading Blue Fluorescent Diamonds | ||||||||||||||||
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| Access the full size images of the Figures contained in the 'Brilliance Study' article above. | ||||||||||||||||
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