Natural Colour Pink Rose Diamonds

How pink diamonds form, their history and where we mine pink diamonds today

Understanding the real value of natural colour pink rose diamonds is a daunting task, especially for people not inclined in gemology. But all of us can quickly appreciate the beauty of the perfect gemstones that started as ordinary carbon atoms subjected to extraordinary pressures. In economics, scarcity of an item increases its value and it exponentially rises if the demand for it increases.

Pink diamonds are extraordinarily rare minerals – only 0.001% of all stones extracted from all of the mines on Earth are pink diamonds. It makes these gemstones one of the most precious and valuable items one can possess. 

Yet, fully appreciating the value of these stones requires an in-depth understanding of the stone itself. How did this delicate pink stone rise to the top of the gem and investment market, and become a sought-after gemstone for jewelry despite its exorbitantly high prices? A brief overview of what pink diamonds are and how they came to be provides more clarity on just why these tint sparkling beauties are so revered. 

Why are some diamonds pink?

Interestingly, with all the modern ways of testing minerals, scientists are still unsure of how pink diamonds got their rare colour. According to numerous tests, there is no evidence that the pink colour was due to any impurities such as Nitrogen and Boron. Various theories aim to explain the colour, one of which is that the colour is the effect of light refracting uniquely due to misalignment in the carbon atoms inside the gem. Though this hypothesis is still not proven, this is one of the many that scientists are currently accepting as a valid explanation and further work continues to confirm it. However, in the end, the mystery of the pinkish hue of these stones has yet to be unveiled and work is continuing to unveil the secrets it has locked inside. 

How are pink diamonds formed?

Diamonds are ordinary carbon that has been subjected to intense pressures for millions or even billions of years. The carbon is compressed so intensely that it achieved a crystalline state so compact that it is the hardest mineral on Earth. It is so hard that only another diamond can cut it. However, pink diamonds have a unique history of creation. Usually, diamonds are found encased in a type of igneous rock called Kimberlite. 

These stones are found in places called Kimberlite pipes and most of the diamonds mined today are from these types of pipes that stretch deep into the Earth’s mantle. Most of the pink diamonds mined globally, on the other hand, are found in lamproite, another kind of igneous rock from the Earth’s mantle, which may be responsible for it having the unique pinkish hue. The Argyle mines in Western Australia, which is the source of 90% of all pink diamonds in the market sits over a lamproite pipe – it is the only currently profitable diamond mine sourcing gems from a lamproite pipe.

Pressures in the mantle compressed the carbon into its crystalline form, turning it into a diamond. However, it is believed that it is in this process of compression that the pinkish hue is created. The deformities in the carbon atom lattice interfere with the rays of light, which absorbs the pink wavelengths, thus making the diamond appear pink. 

The history of pink diamonds

For thousands of years, diamonds were well-valued even in ancient civilization. However, it was only when techniques in diamond cutting were perfected that the sparkling appearance of diamonds took centre stage. During ancient times, a crude method of polishing diamonds was the only way to turn a raw crystal into a jewel of worth. As early as the 4th century BC, diamonds were traded between early civilizations as stones imbued with spiritual powers. Diamonds were used as talismans, and objects of veneration. For centuries, all of the diamonds in circulation back then came from India, which led many to believe that diamonds are only found in the Asian subcontinent. However, in the 18th and 19th centuries, diamonds were discovered in Brazil and Africa. It provided an increase in the supply of diamonds in the market, lowering its price, making it affordable to more people. 

Diamond cutting was first developed in the 14th century, which finally revealed the pure beauty of diamonds. Cuts that take advantage of light refraction was perfected, which turned a roughly polished stone into a shiny piece of immeasurable beauty. It is through this stone-cutting technology that diamonds slowly turned into jewelry used for engagements, marriages, and the imposition and declaration of a person’s rank, status and power.  

The discovery of the Argyle Mines

In the 19th century, gold prospectors surveying Western Australia found a considerable amount of diamonds in the areas creek beds, near where the mines are located today. Immediately, a diamond rush began in the area, and companies began their surveying and claiming. Rio Tinto – a large and famous mining company – eventually took hold of the Argyle mines, which ultimately became the source of 90% of the pink diamonds on Earth. Though there are pink diamonds occasionally found in other diamonds mines, only Argyle provided an almost regular flow of pink diamonds in the market. 

However, due to massive mining, the depletion of the mines was imminent. It is has finally been announced that the mines will shut down by 2021. Though the production in the mines continues despite the rapid depletion – if there isn’t another source of pink diamonds, the price of these stones will skyrocket exponentially. It is for this reason that many are starting to turn their eyes on these pink gems and trying to find the best deal to acquire sure rare stones before inflation drives prices to exorbitant heights. They are also becoming a firmly clever investment option for those looking to put their money in a safe place that grows in value at a steady rate.

Natural Colour Pink Rose Diamonds -