Arpege Diamonds brings you a colored diamond analysis reviewing the most expensive pink diamonds per carat every sold. We combed through auction records to compile a list of the priciest pink diamonds ever to cross the auction block. Read more about which five pink diamonds have achieved the highest price per carat during their most recent sales.

With the vast amount of artificially colored pink diamonds replicating the highly coveted natural pink diamonds, it is important to know the difference between the two when making the decision to purchase. The differences between the two can greatly impact their value and their similarities can be deceiving. Before you make an investment, make sure you are familiar with these differences. 

Now more than ever fancy colored diamonds continue to be the top choice as alternative investments. For the past ten years these colorful stones have seen an increase in sales of nearly 142%, affirming that these unique pieces will continue to gain value over time. The preferred color by investors and collectors has been pink diamonds, due to their scarcity and the growth in demand driving an immense increase in prices.

Natural pink diamonds have been the stars of many auctions in recent years. In 2016, pink diamonds are expected continue breaking records for price per carat.  Sotheby’s Magnificent Jewels and Noble Jewels sale will be held in Geneva in May of 2016, showcasing an impressive variety of colored diamonds, amongst other jewels.

Image Source Sotheby's

An extremely rare and valuable pink diamond weighing 23.16 carats has been recovered by Petra Diamonds Limited from their Williamson mine in Tanzania, Africa and sold for US$10,050,000 million or US$433,938 per carat. Petra described the rough pink diamond as outstanding in color and clarity and its most significant recovery ever from Williamson. It sold at Petra’s December 2015 tender in Antwerp.

Image Source Independent

Gem quality diamonds are rare, but among the rarest of all diamonds are pink diamonds. The principal supply of pink diamonds comes from one source, Rio Tinto’s Argyle mine in Australia. These gems are naturally desirable for some of the finest jewelry or as pure investment, and new uses for the stones unique composition – such as in Magnetic Resonance Imaging – are being discovered. Larger pink stones such as the Graff Pink or the Princie Diamond are often snapped up by private investors, prestige jewelry makers or investing consortiums and are removed quickly from the market.

According to a recent statement from Sotheby's concerning its May 2015 auction in Geneva, "The market for colored diamonds and precious gemstones has never been stronger and pink diamonds rank among the rarest of all.” In that auction, a historic pink diamond belonging to Princess Mathilde Bonaparte (1820 – 1904) fetched 14.8 million Swiss francs. In a bank vault in Paris since the 1940s, the 8.72 carat stone was one of the highlights among the exceptional offerings.