How to Identify Genuine Argyle Pink Diamonds

How to Identify Genuine Argyle Pink Diamonds

Up until 2020, Argyle pink diamonds were mined exclusively in the Argyle Diamond Mine, a diamond mine located in the East Kimberley region in the remote north of Western Australia.


Mining operations ceased in November 2020, after 37 years of operations and producing more than 865 million carats of rough diamonds. Argyle was at times the largest diamond producer in the world by volume (14 million carats in 2018) and it was the only known significant source of pink and red diamonds (producing over 90% of the world's supply).


Understandably, Argyle pink diamonds are therefore among the rarest and most sought-after gemstones in the world, prized for their exceptional beauty and distinctive coloration and they command premium prices and are highly coveted by collectors and investors alike.


However, their rarity and value also make them a target for imitations and fraudulent claims. Identifying a genuine Argyle pink diamond involves a combination of knowledge, scientific testing, and expert validation.


Here's a comprehensive guide to help you determine the authenticity of an Argyle pink diamond.


1. Understanding the Basics: What Makes an Argyle Pink Diamond Unique?


Argyle pink diamonds are renowned for their unique colour spectrum, which ranges from delicate pastel pinks to deep, vibrant reds. The distinctive coloration is due to a combination of the diamond's structure and the presence of trace elements.


Unlike most coloured diamonds, which derive their hues from impurities, the pink colour in Argyle diamonds is believed to result from a rare distortion in the diamond's crystal lattice.


2. Check for Certification

A genuine Argyle pink diamond will come with a certificate of authenticity from the Argyle mine. This certificate includes detailed information about the diamond's characteristics, including its colour, carat weight, clarity, and cut. The Argyle certification is crucial as it verifies the diamond's origin and ensures that it meets the stringent standards set by the Argyle mine.

When it comes to diamond certification, the Gemological Institute of America (GIA) stands at the forefront. Known worldwide for setting the benchmark in gemological analysis, the GIA's Coloured Diamond Grading Report is more than just an assessment; it's a seal of global standard.


Each GIA report provides an exhaustive evaluation that includes:

●      An accurate assessment of the diamond's colour grade, colour origin, carat weight, and clarity.

●      A plotted diagram showcasing the clarity characteristics of the stone.

●      A unique serial number that is laser-inscribed into the diamond, creates an indelible link to its report and verifies its authenticity.

Key Points on Certification:

●      Ensure the diamond has a Gemological Institute of America (GIA) or Argyle Pink Diamonds Tender certificate.

●      Check the certification number on the diamond, which can be cross-referenced with the issuing body's records.


To check the authenticity of your diamond or certifications for pink diamonds by your ID number.


3. Examine the Color and Quality

The colour of an Argyle pink diamond is its most defining feature. Genuine Argyle pink diamonds exhibit a range of pink shades, sometimes with secondary hues of purple, red, or orange. The colour intensity is graded from faint to vivid, with the most intensely coloured diamonds being the rarest and most valuable.


Color Grading Scale:

●      1PP to 1PR (Intense to Vivid Pink/Red)

●      2PP to 2PR (Strong Pink/Red)

●      3PP to 3PR (Medium Pink/Red)


Tips for Color Examination:

●      Use natural daylight or a daylight-equivalent light source to examine the diamond.

●      Compare the diamond with other certified pink diamonds to gauge its colour intensity.


4. Inspect for Laser Inscription

Many genuine Argyle pink diamonds are laser-inscribed with a unique identification number on their girdle. This inscription, which is often invisible to the naked eye, can be viewed under magnification. The inscription serves as an additional layer of security and helps in identifying and verifying the diamond.

When purchasing an Argyle pink diamond, the Argyle certificate is a must. It is the only document that is trusted worldwide and can insure that your pink diamond is of Argyle origin. However, the secondary security measure would be the ID No. that is laser inscribed on the girdle of your pink diamond. Never rely solely on the laser inscription as a method of determining whether an Argyle diamond is genuine.


Steps to Inspect Laser Inscription:

●      Use a jeweller's loupe or a microscope to examine the girdle of the diamond.

●      Look for the Argyle logo and a unique serial number.


5. Utilise Professional Appraisal and Testing

To ensure the diamond's authenticity, it's advisable to seek a professional appraisal from a certified gemologist. Advanced testing methods, such as spectroscopy and luminescence analysis, can detect the unique properties of Argyle pink diamonds.


Professional Testing Methods:

●      Spectroscopy: This technique analyses the light absorption and emission properties of the diamond, helping to identify its origin.

●      Luminescence: Genuine Argyle pink diamonds exhibit distinct luminescence under ultraviolet light, a trait that can be used to confirm authenticity.


6. Purchase from Reputable Sources

The best way to ensure you are buying a genuine Argyle pink diamond is to purchase from reputable dealers and jewellers with a proven track record. Authorised Argyle Pink Diamonds Select Ateliers are recognized for their expertise and authenticity.


Buying Tips:

●      Verify the dealer's credentials and reputation.

●      Request and review all relevant documentation, including the diamond's certification and appraisal reports.

Identifying a genuine Argyle pink diamond requires attention to detail and a thorough understanding of the diamond's unique characteristics. By focusing on certification, colour, laser inscriptions, professional testing, and purchasing from reputable sources, you can confidently verify the authenticity of an Argyle pink diamond. As these gems are rare and valuable, taking these steps ensures that your investment is both genuine and worthwhile.


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