Diamonds

Analysis of Diamond Analysis Equipment

October 31st, 2012

For nearly six years now, we have been analysing every single certified diamond we sell above 0.30ct. This analysis is designed to be complementary to GIA or AGS lab certificates, and includes a photo of the diamond, an Ideal-Scope or AGS ASET image, OGI Firetrace output, a hearts image and a couple of videos. All of this analysis can be seen for any one of our Crossfire or Signature Series diamonds.

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Five Myths About Fancy Cut Diamonds

December 5th, 2010

A fancy cut diamond, is defined as anything other than a standard round brilliant. The most popular include: Princess Cut, Emerald Cut, Asscher Cut, Cushion Cut, Pear Shape, Oval Shape, Radiant Cut, Heart Shape and Marquise Cut. However, many diamond buyers are still confused, especially when it comes to the cut quality of fancy shapes, as to what they should buy.

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The Evolution of Diamond Cut Grading

December 2nd, 2010

Just like mobile phones have evolved over the past three decades, diamond cut grading has as well. Over the years, we’ve gone from assigning a cut grade by measuring a diamond’s table and depth to using advanced ray-tracing techniques to assign cut grades.

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Diamond Transparency and Going Beyond The Diamond Certificate

October 20th, 2010

In a recent article from The Israeli Diamond Portal, a diamond manufacturer states, when talking about a diamond’s “smile”:

“So it can be a big embarrassment for them when they see a certificate for a beautiful, lustrous diamond with a SI1 clarity grade compared to a certificate for a cloudy diamond with a higher clarity – VS1, for example.”

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Lower Girdle Facets in Round Brilliant Diamonds

October 12th, 2010

There are still many amongst the trade and even consumers who still think that you can judge the cut of a round brilliant cut diamond by its table and depth. The more educated may also look at the crown and pavilion angles as well as the table. However, there are 24 facets on the pavilion of round brilliant cuts that play an important role in what the face up appearance of a round brilliant will look like.

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Consumer Expectations vs The Real Diamond World

October 1st, 2010

Having dealt with many customers over the years, I have become accustomed to what consumers, and indeed a lot of the trade think about diamonds versus what really is true. Below I have made a list of some of the expectations I’ve encountered and the “truth” behind them.

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Hearts on Fire, AGS Polish Grading & GIA Clumsiness

August 12th, 2010

Yesterday we received a diamond from our International Selection that had an inscription that I had never seen in real life before.

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Cleavage Plane Fractures

January 5th, 2010

It is a common belief amongst the diamond buying public that diamonds are unbreakable. After all, they rate 10 on the Moh’s scale, so they must be tough, right?

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Fluorescence - From Foe to Friend?

July 20th, 2009

Over the past 18 months, we have been stocking a good number of diamonds with fluorescence. In days gone by, high colour diamonds with strong fluorescence were marketed as “blue-white” diamonds and commanded a premium. In modern times however, fluorescence has been typically frowned upon by the trade and therefore consumers. However, is this about to change?

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More GIA Grading Results

January 12th, 2009

Just before Christmas, we sent nine diamonds to the GIA for grading. As per usual, the results are below.

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