![]() ![]() The more rare a diamond is, the more desired and valuable it is. The stronger the hue, the greater the value of the diamond. Natural fancy red diamonds are graded by the intensity of their colour and range from dark pink to purplish red. ![]() Blue coloured diamonds display the exact opposite properties in these different lighting conditions. They look best in daylight and candlelight and they look worst in fluorescent light. Red diamonds look different in various lighting environments. When a red diamond is retrieved from underground and light is allowed to pass through the irregular lattice, the unusual bending of the light causes the diamonds to reflect a ruby-like colour. Find out more about how diamonds are formed. The red colour of the diamond is created by a rare occurrence in its atomic structure. Unlike other fancy colour diamonds that derive their colour from impurities such a nitrogen and borono, red diamonds are made purely from carbon, just like colourless diamonds. Found mostly in Africa, Australia and Brazil, red diamonds are so rare that only around twenty to thirty true red diamonds are known to exist and most are less than half a carat in size. Although all natural fancy coloured diamonds are extremely rare, none are more so than the red diamond. ![]() Diamonds can occur in almost all colours of the spectrum, with yellow being the most common of all the fancy coloured diamonds. ![]()
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