Investing in Argyle pink diamonds: A Guide
The Mineralogy of Pink Diamonds
While pink diamonds are one of the largest natural treasures, they are also the least understood. There are some theories as to how pink diamonds received their colouring, of which one remains the most popular: scientists believe that an intense physical shock - perhaps a volcanic eruption - distorted the crystal structure. This was found to be the case for more than 99% of the 90,000 pink diamonds that were examined in a study by the Gemological Institute of America.
Despite a number of theories, gemologists cannot agree about the specific circumstances that causes a pink diamond to develop its signature colour.
Read more about the Mineralogy of Pink DiamondsWhat to look for in a pink diamond?
Not all pink diamonds are created equal. There are a few important attributes to consider when investing in a pink diamond, of which colour and grading are of utmost significance. Here, we will discuss these diamond attributes in greater detail below.
Read our informative guide on what to look out forColour
When it comes to the value of pink diamonds, ‘C’ for colour will far outweigh Clarity, Cut and Carat Weight (the 3 C’s). The colour of a pink diamond is determined by the following:
- Hue: The hue refers to the dominant colour tint of the diamond.
- Tone: The tone refers to the amount of lightness or darkness that appears in the diamond.
- Saturation: The saturation refers to the strength or purity of the pink that is found in the hue.
GIA Grading
The Gemological Institute of America (GIA) grades pink diamonds using both colour and clarity. The colours range from lightest to darkest by the following: Faint, Very Light, Light, Fancy Light, Fancy, Fancy Intense or Fancy Deep/Fancy
While not a huge deciding factor on price, it's always beneficial to have a secondary certificate, especially one with such high renown from the GIA.