Understanding Australian Red Diamonds. The Rarest of Red Diamonds.
Argyle certified red diamonds, and the purplish reds known as pRED diamonds, are estimated to be 25 times rarer than a GIA certified red diamond and are considered the rarest of all reds! On average, there are more certified red diamonds as there are purplish red diamonds. The main difference with a certified Argyle Red diamond is they don’t contain any negative secondary brown, grey or orange over tones. These designations can be found in red diamonds graded by the GIA, and those may or may not have an Argyle gem identification document. This characteristic gives an Australian pink diamond certified Red or pRed diamond the distinction of being the world’s purest red and purplish red saturation. Consider as well, there have only ever been 65 Red and 42 Purplish Red diamonds with a total carat weight of 60.85 carats in the 37 year history of this unique pink diamond mine so the desirability of owning this Australian origin diamond increases.
Fancy colour diamonds, classified within twelve major colours groups by the GIA, have over 230 colour combinations and can be found in various mines around the globe. All coloured diamonds are further categorised by the GIA into several intensity grades: Very Light, Light, Fancy Light, Fancy, Fancy Intense, Fancy Deep and Fancy Vivid.
The only exception is a Fancy Red, or the rarer Fancy Purplish Red that come in only one intensity grade – Fancy Red or Purplish Red. Like many other coloured diamonds, most GIA certified Fancy Red diamonds can be found with slight secondary hues for example purple, brown, grey or orange.
For the GIA to grade a diamond red, the diamond must display a dominate deep reddish tone with flashes of pure red. As long as the secondary colour is only slight, it will not be added to the GIA report giving the diamond a straight Fancy Red grade. The unreported secondary colour tones such as brown, grey and orange can have a dramatic negative effect on the look and price of a red diamond. Whereas, the rarer secondary purple tone can increase the look and value of the red diamond.