Diamonds develop deep in the Earth’s mantle under harsh conditions that necessitate a precise temperature and pressure range. Violent volcanic eruptions transport the rough diamonds to the Earth’s surface via kimberlite pipelines, where they are normally extracted.
Pink diamonds are among the rarest jewels on the earth, with only a few produced each year. These diamonds, whether lightly or vividly coloured, form wonderful jewellery stones. The majority of these gems are discovered in Argyle, Australia, where little yet strongly coloured pink diamonds are produced. Other sources generate larger stones, although they are usually less colourful. Pink diamonds are extremely precious due to their scarcity. A high-quality pink diamond with a deep colour can sell for up to $700,000 per carat.
How Do Pink Diamonds Get Their Colour?
There are a variety of factors that influence the colour of a diamond. The presence of trace elements in the diamond’s chemical composition is the most common cause of colouring.
A diamond, for example, has a bright yellowish tint due to elements of nitrogen in its constitution. Because nitrogen is found in almost every part of the Earth’s environment, most diamonds produced are yellowish in hue.
The presence of radiation sources during the formation process can permanently change the colour of the diamond, usually turning it greenish. Black diamonds, on the other hand, are the product of severe graphite and iron impurities, rendering the diamond entirely opaque.
The origin of the diamond’s peculiar colour has been the subject of numerous theories. Some believe it was caused by the high-pressure pink diamonds were subjected to during production, while others say it was caused by a seismic shock that damaged the stone’s molecular structure.
Until now, the cause of pink diamonds having pink colours is still unknown and remains a mystery, which made it one of the very rarest diamonds.
Quick Guide in getting Pink Diamonds
When evaluating fancy coloured diamonds, colour is one of the important aspects to consider. There are three underlying colour components:
Hue – A pink main colour can be found in any pink diamond. Diamonds with pure pink colour, on the other hand, are exceptionally rare and attract the highest prices of any pink diamond. (While pink is technically a light-toned red, gemological laboratories certify pink as a diamond hue.)A pink diamond may have secondary hues of brown, orange, yellow, and purple. Brown secondary colours, which are the most common, have the lowest value. Rose gold can be elegantly complemented by attractive orange colours. Purple secondary colours, on the other hand, may be the most appealing to people looking for a pink stone.
Tone – Pink in lighter tones can be highly appealing, while medium tones can attain greater saturation. Very dark pink diamonds have a lot of brown secondary colours and aren’t very saturated. The tone of a gem describes how light or dark it appears.
Saturation – Only a few pink diamonds have a high saturation level. Gems with low saturation, on the other hand, will seem brown or grey.
Pink diamonds might be dim, very light, or light when it comes to stones with a light tone. Fancy light, fancy, fancy strong, fancy vivid, fancy deep, or fancy dark are all examples of darker tones. The most saturated are the fancy vivid grades. The most costly pink diamonds are fancy vibrant stones, which are quite rare and extremely appealing.
Although clarity has a smaller impact on pink diamond price than colour, it can still make a difference. In darker stones, inclusions are less noticeable, and these rare gems are rarely eye-clean. The higher the clarity of light pink diamonds, the more desirable they are.
The cut quality of a pink diamond has little bearing on its price. Nonetheless, a well-cut stone will be more appealing than one that is badly cut. Even yet, most of these rarities are trimmed to stay in shape.
When opposed to exotic shapes, traditional round brilliant cuts will command a higher price. Modified ornate shapes, on the other hand, are available at a reduced price.
colour intensity and carat weight are the two most important factors that influence the price of pink diamonds. Just as the size and colour intensity of pink diamonds increase, so does their worth and price.
A huge pink diamond is one that weighs more than 0.2 carats. Gems weighing more than one carat are extremely rare, and anything weighing more than two carats is amazing. With increasing carat weight, prices grow quickly.
Type IA and IIA
Pink diamonds are classified as Type IA or Type IIA, with Type II diamonds being rarer than Type I diamonds. Type I diamonds have nitrogen in their carbon crystal structure, but Type II diamonds do not. Type II diamonds are rarer and they sell at a higher price.
The Argyle mine in Australia is widely recognized for producing rough diamonds in amazing colours of pink. They have their own scale of assessing pink diamonds and it is called the Argyle Scale.
The Argyle scale is used when assessing the colour of pink diamonds. On the scale, P stands for pink, PP is for purple-pink, and PR for pink rose. The intensity of the colour is scaled to numbers 1-10. 1 is the most saturated, 9 is the fainted pink, and 10 describes a colourless white diamond.
Pink Diamond’s Treatment
colour Treatment – this is used to enhance the colour of the diamond resulting in a very vibrant hue. However, laboratories can detect them, and gem that undergoes treatments implies a lower price than untreated diamonds.
High Pressure-High Temperature Treatment – diamonds are placed in an environment with high temperature and pressure to enhance the colour of the gem. This is the most frequent sort of treated pink diamond, and the treatment is permanent, so it won’t need to be cared for again.
Irradiation Treatment – this treatment uses radiation to diamonds in order to produce a pink colour. However, these treated diamonds might change their colour when exposed to extreme heat.
Annealing – putting a gem in a controlled environment with heating and cooling can also produce pink diamonds. This is usually used after irradiation.
Coating – to mask unwanted colours, gems can be coated.
Graining – Pink diamonds have crystal graining that gives them their colour. Pink diamonds with tightly packed grains give a richer colour and tone. Because of zoning, also known as texture, some gems have an unfavourable hazy appearance. Most crucially, if the zoning isn’t visible in the face-up gem, graining will have no effect on the clarity grade.
Synthetic Pink Diamond
Laboratories can produce synthetic diamonds. However, they have significantly less value compared to natural diamonds.
Ideal Settings for Pink Diamond
Three-stone setting – combining pink diamonds with side stones is a wonderful method to increase the size and glitter of your ring.
Halo setting – A halo setting consisting of tiny round brilliants that will enhance the colour and size of your pink diamond.
Double Halo setting – Putting a double halo of small stone will put your pink diamond in the spotlight.