Fancy Pink Diamonds at Shira Diamonds
Pink diamond is a type of diamond that has pink color. The source of their pink color is greatly debated in the gemological world but it is most commonly attributed to enormous additional pressure that these diamonds undergo during their formation.
Pink diamonds belong to a subcategory of diamonds called fancy color diamonds, the generic name for all diamonds that exhibit any sort of color. Pink diamonds range from flawless to included, just as white diamonds. Several pink diamonds with internally flawless clarity have been discovered, but only one is known to be completely flawless, the Pink Star (which was shortly renamed the Pink Dream until it diverted to Sotheby’s).
As with the color in all fancy color diamonds, the color in pink diamonds is assessed according to its hue, saturation and tone. The hue refers to the primary and secondary colors, the saturation refers to the distribution of color, and the tone refers to the darkness of the color. Pink diamonds can occur in hues ranging from brown-pink to purple-pink, although pink can also be a modifying color in other diamond colors. Brown, orange and purple are the only occurring secondary hues in pink diamonds although a pink diamond can exhibit both brown and orange overtones at the same time, making it a “brownish orangey pink” diamond. The ideal pink diamonds are generally considered to be those which exhibit pure pink color although purple-pink diamonds are generally very highly regarded as well. Generally speaking, a vivid pink diamond will be more valuable than a larger lighter pink diamond, although it is not always the case according to the Diamond Investment & Intelligence Center. Pink diamonds can occur in eight intensities, faint pink, very light pink, light pink, fancy light pink, fancy pink, fancy intense pink, fancy vivid pink, fancy deep/dark pink. Just like in all fancy color diamonds, the more vivid intensity pink diamonds are far rarer than the less vivid, which is in part why they demand a higher price. The same cause in nature which is the course of the pink in pink diamonds can be more or less concentrated depending on the specimen. That is why it is so rare to find the most concentrated diamonds in each color. There is no perfect consensus as to what defines each color intensity grade, even though the GIA keeps a master catalog of each diamond color. Therefore, each color intensity also has a subscale of 1-10. Within the industry, a diamond trader may call a diamond “fancy vivid” or “fancy intense” but will often also call the diamond “a 7” or whichever number is most apropos to the diamond’s appearance, which enables the most thorough representation of the diamond’s color intensity. Pink diamonds fall under the category of Type IIa diamonds, meaning that they form under remarkably high pressure for longer time periods, and tend to have an irregular shape. They have no visible absorption, no nitrogen impurities that may cause a yellow or brown tint. The Argyle Mine, the world’s current main source for pink diamonds, has developed their own pink diamond color classification system separate from that of the GIA. Instead of intensity, the color is divided into a scale from 1-9, 9 being the lightest and 1 being the darkest. However, Argyle pink diamonds still receive GIA certificates.