P.J.Joseph's Weblog On Colored Stones, Diamonds, Gem Identification, Synthetics, Treatments, Imitations, Pearls, Organic Gems, Gem And Jewelry Enterprises, Gem Markets, Watches, Gem History, Books, Comics, Cryptocurrency, Designs, Films, Flowers, Wine, Tea, Coffee, Chocolate, Graphic Novels, New Business Models, Technology, Artificial Intelligence, Robotics, Energy, Education, Environment, Music, Art, Commodities, Travel, Photography, Antiques, Random Thoughts, and Things He Like.
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Monday, June 26, 2023
HPHT-Grown Colorless Diamond Displaying Unusual Phosphorescence Effects
Sunday, March 13, 2022
Tuesday, December 07, 2021
Wednesday, September 23, 2020
ISO 24016:2020
CIBJO has described the publication by the International Standards Organisation of ISO 24016, the first-ever standards approved by the body that specifies the terminology, classification and the methods to be used for the grading and description of single unmounted polished diamonds.
Tuesday, August 04, 2020
AGS Lab To Resume Grading Lab-Grown Diamonds
Useful link:
https://www.americangemsociety.org
Tuesday, February 18, 2020
Sunday, July 14, 2019
DiaCam360
Useful link:
http://www.idexonline.com/FullArticle?Id=44846
Friday, July 12, 2019
The Brilliant Work Of A Diamond Grader
Useful link:
http://www.bbc.com/capital/gallery/20190522-the-brilliant-work-of-a-diamond-grader
Saturday, July 06, 2019
Varna-D
Gemoro Products announced that it will be the worldwide distributor for Imagem’s new Varna-D polished diamond grading device.
The portable state-of-the-art device is designed to quickly and reliably color-grade polished diamonds from D to L, the company said.
It can be used on diamonds of various sizes (0.25 carats to 5 carats), shapes, fluorescence, zoning and secondary hues, and has a rechargeable battery that lasts for five-plus hours.
The device is priced at $5,999. For more information, visit ImagemInc.com.
Thursday, May 30, 2019
Sunday, May 19, 2019
Are Some Diamonds Still Overgraded? Here’s What Retailers Say
Useful link:
https://instoremag.com/are-some-diamonds-still-overgraded-heres-what-retailers-say
Saturday, May 04, 2019
Wednesday, December 05, 2018
Wednesday, June 20, 2018
Thursday, June 14, 2018
Wednesday, August 16, 2017
Sarine Claims Superior Accuracy For Grading Tools
Useful link:
http://www.diamonds.net/News/NewsItem.aspx?ArticleID=59146&ArticleTitle=Sarine%2bClaims%2bSuperior%2bAccuracy%2bfor%2bGrading%2bTools
Sunday, March 27, 2016
Have Overgrading Lawsuits Become Overkill?
Useful link:
http://www.jckonline.com/blogs/cutting-remarks/2016/01/29/have-overgrading-lawsuits-become-overkill