The Gemstone Blog – Page 4 – GemSelect AU
Menu
Cart 0

The Gemstone Blog

Finding Diamonds

Posted by MICHAEL Hart on

Finding Diamonds

Exploring for Diamonds takes extensive amounts of time, expertise and investment. An example of this is the Argyle mine in Australia that took $12 million and 8 years of exploration to find. It then took a further $420 million to start producing. Besides the investment there are Political, environmental and many times, Geographical issues to deal with. To put it simply, it’s not a cheap exercise.  Exploration companies use a mixture of Aerial surveys, and radar to locate the Kimberlite pipes where diamonds are found. There are literally 1000’s of deposits worldwide that have been located, however only a small percentage...

Read more →

How Diamonds Form

Posted by MICHAEL Hart on

How Diamonds Form

There is allot that a Diamond goes through to get to the Jewelry we wear today. Diamond engagement rings offered as gifts for marriage are adorned with Diamonds that began their journey millions of years ago. The knowledge of how Diamonds form helps us to truly appreciate how special they are.  Diamonds form between 90 and 140 miles beneath the earth’s surface under conditions of extreme heat and pressure. This combination causes carbon atoms to link together and create what we know as the hardest substance on earth. The carbon that makes diamonds comes from two types of rocks, Peridotite...

Read more →

The End of the Single Channel Diamond Market

Posted by MICHAEL Hart on

The End of the Single Channel Diamond Market

Until the start of the 21st century, De Beers had total control over the Diamond Industry. However there have been more changes to the Diamond Industry in the last 20 years than anyone could have imagined – changes so dramatic they broke up the De Beers’ monopoly and opened new channels through which diamonds are sold today. This post reviews how the Diamond industry moved from being a Single Channel Market controlled by De Beers to the thriving multi channel market we have today  It starts with Russia... The break down of De Beers’ Single-channel market happened alongside the collapse of the...

Read more →

The Diamond Industry and It's Beginnings

Posted by MICHAEL Hart on

The Diamond Industry and It's Beginnings

The mining, collecting and cutting of Diamonds had its beginnings in India, where Diamonds were found in Alluvial deposits such as riverbeds. Diamonds were being traded in India as early as 1400BC- mostly by the elite upper class from India and Europe.    By the 1700’s the Diamond supply in India started drying up. New sources were discovered in Brazil in the 1690’s when workers found diamonds while sifting for Gold in the Amazon River. Brazil then became the major source of Diamonds for the next 100 years  Finally, in the late 1800’s new sources we discovered in South Africa along...

Read more →

Diamond Grading 101

Posted by MICHAEL Hart on

Diamond Grading 101

With a wide range of Diamond quality, it is important for professionals and consumers alike to have a recognised and consistent system for comparing one diamond to another. Without systems such as the GIA Diamond Grading system, there would be no way to accurately describe the characteristics of a diamond and how it differs from another – differences that can cost $1000s of Dollars. When a diamond is submitted to a lab for grading, the amount of time spent grading it is directly related to the value of the Diamond. Most Laboratories have adopted the GIA Diamond Grading system which is...

Read more →