We reported once in June that the Argyll Mine was about to close, and now it is really closed! On November 3, mining operations at the Argyle Diamond Mine officially came to an end.
, the world’s largest diamond mine-known for its coveted pink and red diamonds produced every year-has been in production for nearly four decades under the Rio Tinto Group.
It is reported that Rio Tinto plans to hold the last sale of Argyll rough diamonds at the end of December, and conduct the last round of Argyll pink diamond tenders in 2021, and the restoration of the Argyll mine is expected to be completed within five years . When
mentioned the origin of pink diamonds, many people’s first reaction was Australia. Indeed, since the 1990s, Australia has gradually become the most prestigious producer of pink diamonds. Approximately 90% of the world's red and pink diamonds come from the Argyle Mine in Western Australia. However, only 0.1% of the diamonds produced in the Argyll mine each year are pink diamonds. Among these pink diamonds, more than half a carat (50 points) can only be filled with one palm.
In addition to rare pink diamonds, Argyll is also the world's largest diamond producer at .
Of the total output of the Argyll mine, three-quarters are low-priced brown diamonds, and the average price of the mine’s total output is between 15 and 25 US dollars per carat . It is precisely because of these cheap small-grain diamonds that not only erodes the profits of almost all miners, but also makes it increasingly difficult for cutters, polishers and traders in the industry to make profits. Mountain Province Diamonds Inc., a diamond producer based in Toronto, said in May last year that the decline in diamond production after the closure of the Argyll mine will help the industry to recover prices.
“As far as pink diamonds are concerned, the impact will be more severe.” Soirat said in an interview about the closure of the Argyll mine. “Just like the law of supply and demand, you can imagine that this will affect those very rare pink, red, The production of blue and purple diamonds has an impact.”
In fact, the production of pink diamonds is extremely limited- Even though approximately 90% of the world’s pink diamonds are produced at the Argyll mine, they are basically small particles with an average weight of only Around 1 carat. Among the diamonds produced each year in the mining area, pink diamonds above 50 carats account for only 0.0001% of the total production.
As collectors are thirsty for top large pink diamonds, the price of pink diamonds has doubled in the past 10 years. Now that the Argyll mine is officially closed, buyers are bound to realize the potential impact of this on the further increase in the value of pink diamonds.
Some people may not agree with this—it is true that many famous large-carat pink diamonds are found in other places.
Centuries ago, the Kollur Mines near Golconda in southern India produced many large-carat pink diamonds, such as the 186-carat Darya-i-Noor and the 60-carat Nu-el- Ain and 56.71 carats of Shah Jahaan pink diamonds.
and the record-breaking pink diamonds in auctions are not all produced in the Argyll mine.
In other words, the value of large-carat pink diamonds is unlikely to be directly affected by the closure of the Argyll mine-after all, it is already a "sky price". But for the entire pink diamond market, it is still a big impact. Some experts even bluntly said, "The closure of the Argyll mine proves that the diamond mining area is not permanent."
Next, we will conduct popular science on pink diamonds and let you know The value of pink diamonds is better understood.
pink diamond color
GIA grading pink diamonds
US GIA Gem Lab grades the color of pink diamonds as:
faint pink faint/very light pink very light/light pink light/light pink fancy light/medium pink fancy/ Intense pink fancy intense/dark pink fancy deep/bright pink fancy vivid. The overall color of
can be roughly referred to the picture below. Generally, colors above Fancy are more valuable for preservation, collection, and investment.
Argyle pink diamond grading
Argyle color grading is divided into three main categories: hue, saturation and lightness.
1. Hue refers to the dominant color of the diamond.
2. Hue saturation reflects the strength of color density.
3. Brightness level and/or dark diamond.
In general, the color intensity of pink diamonds is nine degrees for each category:
pink with purple: 9PP, 8PP, 7PP, 6PP, 5PP, 4PP, 3PP, 2PP, 1PP Pink: 9P, 8P, 7P, 6P, 5P, 4P, 3P, 2P, 1P pink rose: 9PR, 8PR, 7PR, 6PR, 5PR, 4PR, 3PR, 2PR, 1PR pink champagne: PC1, PC2, PC3, PC4 Blue purple: BL1, BL2, BL3, The BL4
Argyle pink diamond gem identification document is the official report of the Argyle pink diamond engraved with the laser. If every Argyle diamond weighs 0.15 carats or more, it will carry a marked serial number. The diamond girdle number can be found on the laser inscription of the Argyll Mine to ensure the authenticity of every rare pink diamond. The hue of
pink diamonds
is the same as other colored diamonds. Pure pink diamonds are the most valuable, followed by pink purple diamonds. Because of their gorgeous appearance, they are often the first choice. Pink diamonds often contain purple, brown, light gray, orange, brown orange and brown purple.
Generally common pink diamonds on the market have the following variegated tones:
1. Purple (purple)
2. Brown (also called coffee) (brown)
3. Orange (orange) The value of pure pink and purple powder is the highest. It is the most valuable color for investment, collection, and collection. Of course, it was mentioned just now that those with a color level of Fancy and above have the most qualifications.
Once the pink diamond has other variegated tones such as Brown and Orange, its value will be greatly reduced. Not only can it not achieve the color of the originally expected pink diamond visually, but its value is far lower than pure pink and purple. powder.
and purple, orange, brown, endings, such as Fancy pink Purple, Fancy pink orange, Fancy pink brown, are actually not pink diamonds anymore, so their value is not as good as pure pink and purple pink, especially brown ones. Its value is far lower than pure powder and purple powder.
Pink diamond purchase cheats
Recommendations for buying pink diamonds
The actual quality of gemstones with the same certificate varies greatly. When choosing a gemstone, you must not just look at the certificate, because the certificate is only a commercial product. The gem has existed for thousands of years, and the certificate only has With a history of more than 100 years, the certificate can detect the authenticity of gems, and the certificate will only give you a color range. In this color range,
has a better color and a worse color. Whether the quality of the gemstones is good or not, it is necessary to personally screen and pick one by one with the naked eye in order to pick out the very good quality. In addition to white diamonds, colored gems and diamonds, certificates can only serve as a reference. The real value is the quality of the gems.
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