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The Gemstone Blog

How Diamonds are Cut

Posted by MICHAEL Hart on

How Diamonds are Cut

Diamonds are one of the hardest minerals on earth. As such, it is not a simple task to turn a rough diamond into a polished stone. Cutters need to weigh-up the pros and cons of each of the 4 cs and how they relate to each other. They also factor in the popularity of various styles and how easy it will be to sell the finished product. Before any cutting is done the cutter needs to plan the cut. They do this by studying the crystal structure for inclusions and deciding which type of cut will yield the best proportions...

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The Evolution of Diamond Cutting

Posted by MICHAEL Hart on

The Evolution of Diamond Cutting

Thousands of years ago when diamonds were first discovered, only rulers and kings were allowed to wear them. Diamonds were thought to possess magical powers and the process of cutting a diamond was thought to alter it's magic. Today hundreds if not thousands of diamond cuts are available to choose from. This post reviews the different types of diamond cuts and the process a cutter goes through when evaluating rough. People started to cut and fashion diamonds in the 13th century. The first style was known as the Point cut which looked like a natural diamond crystal cut in half...

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How Diamond interact with Light

Posted by MICHAEL Hart on

How Diamond interact with Light

When a Diamond hits the light, There are three factors that make it beautiful- brightness, fire and scintillation. This post reviews how diamonds interact with light and the ways cutters use this knowledge to unlock a diamond’s full potential Diamond Brightness  Diamond Brightness is a grading term that is used when grading a diamond's cut. Light enters a diamond through the crown, bounces off the pavilion and back out through the crown at a critical angle. Diamond Brightness is determined by the amount of light that reflects out of a diamond and back to the eye.  Fire Fire is the...

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The Diamond Crystal Stucture

Posted by MICHAEL Hart on

The Diamond Crystal Stucture

The term “crystal” started being used in the 17th century to describe the symmetry of different minerals people found. Diamonds have what is known as an octahedron crystal structure with eight triangular sides. Over the years the crystal structure of Diamonds has been studied in detail to improve the way that Diamonds are cut and how they interact with light. This post reviews the crystal structure of Diamonds and what makes it unique. A Diamond is the hardest mineral on earth. The reason for this is that its atoms fit closer together than any other natural material. The atoms also have Covalent bonds...

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Where Diamonds are Found

Posted by MICHAEL Hart on

Where Diamonds are Found

Since ancient times, People have gone to the ends of the earth (and beyond) to locate Diamonds. Diamond mining today is big business with automated processing plants, heavy machinery and highly predictable output. Picks and shovels are a thing of the past. This post reviews the different methods people use to extract diamonds and the deposits where they are found Primary deposits Mining primary sites involves removing the earth around a diamond bearing pipe and extracting the diamonds from the kimberlite. The top levels of sand gravel or rocks are removed which results in an open pit mine. Most primary...

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