The Diamond Guy®
Argyle BLOG

Plastic Deformation: Red Diamonds, Pink Diamonds and the Science Behind Color by Joel E Arem, PhD, FGA Everybody loves diamonds. We love them for their hardness, their brilliancy, and their amazing and unique luster. Most people think of diamond as a 'white' (colorless) gemstone, and indeed most gem diamonds are white, or nearly so. But the most valuable of all diamonds are the ones that display a strong color, such as yellow, pink or blue. Many other gems, including tourmali

The Art of Building An Argyle Collection... How to Win an Argyle Stone Every year for the Argyle diamond tender, a private invitation was sent out to 150 diamond ateliers around the world to go to one of the 2-3 exclusive locations around the world, where the tender stones were viewed. Then, they are given an hour each to examine the pink, red, violet, blue and grey stones and put to in a closed bid. (In 2020, due to the pandemic, the bids moved online for the first time.)

The Diamond Guy® Breaks Down the Last Argyle Diamond Tender - 2021 Up until this point, there have been 1,883 Pink diamonds, 42 Red, and 65 Blue, Grey, & Violets from the Argyle Tender. With the last 70 stones in the 2021 tender, that will make 2,060 little masterpieces. To put it in perspective, there are over 50,000 artworks that Picasso created in his lifetime. Claude Monet painted approximately 2,000. In the diamond world, for 38 years that’s only an average of 54 works o

An Intimate Look into an Ultra Rare Red Color-Changing Diamond. When I first began my career in the diamond industry, my mentor told me about red diamonds, and how the Smithsonian obtained one from Harry Winston's widow and shrugged: "You'll probably never see a red diamond in your life. Most diamond experts never do. They're beyond rare." At that moment, I wanted in. I wanted to be one of the people who got to see red diamonds, handle them, study them, and be in their wor