Since 1985 approximately 90% of global production of natural pink diamonds have been extracted from the pink diamond mine in Western Australia. However, only a select number of these pink diamonds are retained and polished by the Australian pink diamond mine. The rest are sent to auction and sold as ‘seconds’ because they don’t make the high standards required by the Australian pink diamond mine.

The other 10% of pink diamonds mined and sold globally that are not from the Argyle mine are predominantly from Africa, India and Brazil, with a small amount of Pink-Purple extracted from mines in Canada and Russia.

All pink diamonds fall into two DNA classes, Type Ia and Type IIa. Australian pink diamonds are predominantly Type Ia and all others are predominantly Type IIa. According to extensive research by the GIA when considering purchasing a natural pink diamond, the best option is a rare Type Ia Pink Diamond from the Australian pink diamond mine; as these diamonds exhibit the unique qualities to look for in an investment. The relative rarity of such pink diamonds results in a premium that can be placed upon an Australian Pink Diamond. The best colour grades to consider are saturation of 1 – 6, in colours Purplish Pink (PP) and Pink (P) followed by Pink Rose (PR) since these have definite pink hue visible to the naked eye. When considering the shape of a diamond for investment it is wise to prefer traditional fancy cuts such as asscher, emerald, oval, pear, marquise, radiant, cushion, heart, princess and round brilliant shape diamonds, as these are considered more desirable, are better known and may return a greater profit over a non-traditional modified fancy shapes.

When reviewing the change in value of a natural pink diamond over time; according to the Fancy Color Research Foundation (FCRF), natural pink diamonds without official Argyle certification have only increased in value by a 1% in the past five years and all of that was in 2019. This statistic is significant when compared to the 18.6% average increase in value for comparable Australian pink diamond certified diamonds in 2019. It should be no surprise then that certified Australian pink diamonds are the preferred choice as a tangible investment. Certified pink diamonds have outperformed the Australian All Ordinaries Index and the trends in the Australian property market. With the Australian pink diamond mine closing in 2020 and a limited supply of this beyond rare commodity a pink diamond from the Australian pink diamond mine is truly the ultimate limited edition.