GemConcepts Blog

Diamond Cutting – The Sawing Process

Diamond Cutting – The Sawing Process

There were numerous historical events that shaped diamond cutting evolution leading to why diamonds are cut today to their present fashions and proportions. One significant event was the industrial revolution and the new machines and tools it helped develop in order...

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Diamond Facets – The windows to light

Diamond Facets – The windows to light

The beginnings: a window into a diamond The first optical diamond facet ever applied onto a diamond was when table cut (fig. 1) diamonds started appearing in Europe around the 14th Century. The large table facet which characterized the table cuts allowed for the first...

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Miners Diamond

Miners Diamond

What is Miners Diamond Since writing our “Old Mine Cut Diamonds – a complete informative guide”, quite a few people have asked me, “…then what is a “miners diamond”  In this short article, I am going to try to delve a bit deeper into the world of “old...

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Diamonds Fire

Diamonds Fire

After touching on diamond brilliance in our previous article, we now are going to delve a bit deeper into what creates the colorful fire phenomena in diamonds – the Fire, which we all desire from our diamonds.

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Diamond Brilliance, what is it really?

Diamond Brilliance, what is it really?

Diamonds have entered our collective consciousness as objects of beauty, luxury items to charm and captivate. Their lustrous brilliance is mainly responsible for this historical phenomena. In the old days, before polishing was invented Point Cuts (image 1) were...

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Old Mine Cut Diamonds Guide

Old Mine Cut Diamonds Guide

Old Mine Cut diamonds, Period Jewels, and everything else that falls in this specialized, “unique” niche have been trending in the right direction for years. Despite the increasing popularity, there is still a lot of confusion when referring to “Old Mine Cut...

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Diamond Girdle – A cutter’s compass

Diamond Girdle – A cutter’s compass

Diamond girdles tell a lot about diamonds and their cuts. To the average observer, girdles simply display the division between the top and the bottom sections of the diamond. As a matter of fact, the girdle plane is one of the most important features of a cut and...

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The Tiffany Yellow Diamond – Up Close

The Tiffany Yellow Diamond – Up Close

It must have started somewhere around 2002, when I first discovered that the marvelous and Historic 128 carat Tiffany Yellow Diamond was on permanent display on the main floor of the Fifth Avenue Tiffany flagship store. I was pleasantly surprised that I could actually...

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Bespoke orders, a tale of seven Old Mine Cut diamonds

Bespoke orders, a tale of seven Old Mine Cut diamonds

A short story telling of a unique order just about to be completed, the order calls for seven matching quarter carat Old Mine Cut diamonds, in warmer J-K-L colors not necessarily for a lower price but more importantly to match a certain jewel design. Why unique you...

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Diamond Culet – The Hole in the Middle

Diamond Culet – The Hole in the Middle

Introduction to Open Culets Diamond culets have many stories to tell, their story subjects depends on the relative period the diamond was crafted or polished. Unfortunately such stories ended with modern cutting advancement and for the last century, diamond culet...

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Diamond Design, still stuck in 1919

Diamond Design, still stuck in 1919

Throughout history, the concept behind diamond cutting was to shape and facet them for their subjective beauty based on the optical knowledge of the different era’s. Diamonds were mainly purchased and collected by royalty…

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Old Mine cushion cut Diamonds VS. Modern cushion cut Diamonds

Old Mine cushion cut Diamonds VS. Modern cushion cut Diamonds

Introduction to Old Mine Diamonds Old Mine Diamonds, what are they actually? In my opinion, “Old Mine” is a 20th century nomenclature given to all older diamonds cut in the brilliant style no matter their shape. More often used with shapes resembling the Peruzzi...

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Cutting Fancy Color Diamonds – Vintage vs. Modern Designs

Cutting Fancy Color Diamonds – Vintage vs. Modern Designs

Have you ever wondered why large cape yellow round brilliant diamonds seem to have all but disappeared? In this article, we’ll reveal why that is and what it means by explaining the cutting of cutting fancy color Diamonds.   Article Index: Fancy color diamonds...

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Not All Diamonds are Cuttable, some don’t get to sparkle

Not All Diamonds are Cuttable, some don’t get to sparkle

The Diamond cutting process is much complicated than one might think. Unlike all other gemstones, Diamonds are considered the hardest material/substance on earth. Cutting & polishing a Diamond is sometimes even impossible! A Diamond planner & cutter needs to...

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How I Discovered the Regent-Pitt Diamond Spark

How I Discovered the Regent-Pitt Diamond Spark

The year was 1999. I was hard at work developing a new Diamond cut for the marketplace. In the final days of the 20th-century, most available Diamond cuts were basic, known generic cuts that had been marketed one way or the other for the last century. Some of these...

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Colorless Antique Diamonds – not a myth

Colorless Antique Diamonds – not a myth

A while ago as I read in one of the more popular Facebook forums about the jewelry industry that most antique Diamonds were of lower (warmer) colors because most originated from the (then) newly discovered South African mines in the later part of the 19th Century....

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