For this process, they use a special device called a spectrophotometer. The only way to identify heat and radiation treatment in a diamond is to entrust it to a gemologist, who can look at it under a powerful microscope and examine the absorption patterns of the stone.
Most treated red diamonds get their color from a combination of heat and irradiation, though some older stones were given colored foil backings to give the illusion of color.
Unfortunately, it can be nearly impossible to tell if a diamond’s color is natural just with the naked eye. You can read about some of the tests we can do at home to verify our diamond jewelry. Other red gemstones will not show these properties. They reflect and refract light in a very distinctive way, giving them their famous play of fire, brilliance, and scintillation that makes diamonds so coveted. Red diamonds are very real diamonds and share all of the same geological and optical properties as standard colorless diamonds. Plus, even real diamonds can be treated to create an artificial body color. In addition to artificial red diamonds and real laboratory grown red diamonds, there are a wealth of other red gemstones being used in jewelry - rubies, garnets, and red spinels are just a few examples. While not as rare or valuable, this color treatment won’t change or fade over time, so this is a slightly more accessible alternative for someone looking for a red diamond.īecause red diamonds are so incredibly valuable, there are a lot of imitations on the market. This can be done with both natural diamonds and synthetics grown in a laboratory. However, there have been examples of diamonds that are artificially treated to achieve bold red colors. Colored diamond prices - which are already comparable with a cute four-story cottage in the Bahamas - are set to continue climbing, and quickly. However, the Argyle mine shut its doors for the last time in 2020, which means that we will be seeing less and less of these diamonds coming onto the fine jewelry market. You might recognize this name, as they’re famous for producing more colored diamonds than anywhere else in the world. Very, very few examples of this diamond are found each year - as few as three or four across the entire world - but most of them come from the Argyle mine in Australia. Fancy Red Radiant Halo Diamond Ring by Leibish
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