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Beta Diamond Videos Made in a Prototype Light Box

As part of the development of Next Diamond™ and to provide a consistent method to display diamonds from afar, the Cut Group has been working on a lighting box, diamond movement system and camera set ups. We would like to receive your feedback and suggestions for improvements for a standardized lighting box. The mai...

Beta Diamond Videos Made in a Prototype Light Box CLICK HERE TO VIEW POST

Video Article: The Parts and Facets of a Diamond

"Flash content"In this video Jonathan from Good Old Gold explains the anatomy of a Diamond.Click Here to Discuss

Video Article: The Parts and Facets of a Diamond CLICK HERE TO VIEW POST

The Camera May Not Lie – But it Tells Different Truths

I have been in the jewelry business since 1970 when I bought my first gemstone for a girlfriend in Rio de Janeiro, Brazil. Within days I was buying & selling gems and my lifelong love affair and study of gemology was started. I graduated from the Gemological Institute of America in 1975, and have been a proud me...

The Camera May Not Lie – But it Tells Different Truths CLICK HERE TO VIEW POST

Laboratory Cut Grades: What the report doesn’t show

What the report doesn’t show To the naked eye a D Flawless diamond can appear identical to an F VS diamond if each has been cut the same way.  Alternately, less than one degree of variation in two diamonds’ facet measurements can make a noticeable difference in appearance - yet both could be issued the same cut gra...

Laboratory Cut Grades: What the report doesn’t show CLICK HERE TO VIEW POST

60/60 or ideal cut. How do you know what to choose?

Recently, I had the opportunity to examine two very similar diamonds, one cut to near Tolkowsky ideal AGS0 specifications and one cut to near what dealers refer to as 60/60 make. 60/60 refers to 60% table, 60% depth. Diamond dealers would consider both of these cut styles as very good cutting, but the ideal spec sto...

60/60 or ideal cut. How do you know what to choose? CLICK HERE TO VIEW POST

Buying Diamonds: Consumers’ Problems and a Solution

Buying Diamonds:  Consumers’ Problems and a Solution By Sergey Sivovolenko, Janak Mistry, Garry Holloway and Dr Yuri Shelementiev The Next Diamond™ cycle Abstract: Next Diamond™ enables diamonds to be cut and polished in a way that solves problems for diamond cutters, retailers and consumers. Cons...

Buying Diamonds: Consumers’ Problems and a Solution CLICK HERE TO VIEW POST

pavilion mains

Do the pavilion mains drive light return in the modern round brilliant?

Article by Karl K. On many websites you will see it said that the pavilion main facets drive light return. Top labs and many grading systems use the pavilion angle as a basis for assigning a cut grade. Is this correct? We will be using computer generated Ideal-Scope images created in DiamCalc for this discussion. ht...

Do the pavilion mains drive light return in the modern round brilliant? CLICK HERE TO VIEW POST

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