Interesting Facts About Pink Diamond
Did you know pink diamonds are exceptionally rare that a single year’s supply garnered from the Argyle Mine could barely fill a champagne glass01? Pink diamonds get their pink color due to “plastic deformation”. This is a rare natural occurrence where extreme pressure twists the crystal lattice of the stone, which allows it to reflect soft rose light02.
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Where Pink Diamond Comes From
Pink diamonds are considered as geological marvels formed around 1.3 to 1.6 billion years ago. According to the Gemological Institute of America, these colored diamonds are made of pure carbon, unlike other gemstones whose colors are derived from chemical impurities03.
The pink color of these diamonds is a result of “plastic deformation”04.
This causes its crystal lattices to be twisted. This structural displacement causes the stone to absorb green, and, therefore, reflect the pink hues.
These diamonds have colors ranging from delicate Faint Pink to the highly sought Fancy Vivid Pink05. They are characterized by their “graining”. This pertains to the visible lines of color within the stone03. Pink diamonds are significantly harder to polish than white diamonds because of their complex atomic structure. Polishing requires three to four times longer to finish.
Historically, Argyle Mine serves as the primary source of pink diamonds. This is where 90% of world’s pink diamonds are mined06. Upon the mine’s closure in 2020, the supply has become limited. There are only small, scant quantities found in Tanzania, Russia, Brazil, and South Africa07.
How Pink Diamonds are Processed
The process involving pink diamonds is a high-stakes form of art. It requires more patience and skill than traditional white diamonds08. The crystal lattice of pink diamonds make their atomic layers twisted due to “plastic deformation”. With this, cutting pink diamonds is considered as cutting “knots of wood” rather than smooth glass09.
3D laser mapping is utilized by artisans to maximize pink diamonds value. This is to align the stone’s color-rich graining in perpendicular orientation to the table (the top facet). This allows the perceived hue to intensify. Radiant or cushion shapes are favored more than round cuts in order to feature deeper pavilions and saturate the pink color10.
Why It Is Expensive and How Rare It Is
Pink diamonds are expensive as they account for less than 0.01% of global diamond production11. Upon the closure of the Argyle Mine in 2020, the value of pink diamonds significantly increased. Currently, there are no new major sources discovered. This leaves the pink diamond with only limited resource12. Furthermore, their value is heightened due to the complex “plastic deformation” required for their color.
Famous Jewelry Made from Emerald Gemstones
Pink diamond jewelries often features legendary stones in bespoke or historic settings. Some notable pink diamond jewelries are:
- The Pink Star Ring – It is a 59.60-carat oval-cut jewelry. It is currently the most expensive jewel ever sold at an auction with price ranging $71.2 million13
- The Williamson Pink Brooch – It is a famous 23.60-carat flower-shaped jewelry. It is notable as it was a gift to Queen Elizabeth II14
- The Graff Pink Ring – It is a 23.88-carat emerald-cut gem. It is remarkable for its rare internal flawlessness15
Price Per Carat
As of 2026, pink diamonds still have its price at high value due to their increasing scarcity. Fancy Light Pink stones have its prices range from $50,000 to $100,000 per carat. Fancy Intense stones, on the other hand, have its value range form $250,000 to $600,000 per carat16. The most expensive type of pink diamond, which is the Fancy Vivid Pink, ranges around $2 million per carat. Its value even reaches over $5 million per carat17.
