A diamond lasts forever, one lasts forever! The world loves diamonds, but it is very rare in the natural world on the surface of the earth, so natural diamonds are expensive, although diamonds can already be artificially manufactured, but the global diamond mining industry is still very prosperous, if anywhere a large diamond is mined will become international news.
Recently, there has been a big news in the industry, and a number of media reports have reported that the Australian mineral operator Lukapa Diamond Company announced on July 27 that a rare pink diamond weighing 170 carats had been found in Angola, and said that it was the largest pink diamond found in the world in 300 years, and its value was incalculable.
This giant pink diamond was found in the Lulo mine in the northeast of Angola, which is rich in diamond resources, experts call this diamond Type IIa quality (high-quality diamond with pure color), belongs to the rarest and purest natural diamond variety, can be called "rare pink diamond", has been named "Lulo Rose" (Lulo Rose), 170 carats of weight (equivalent to 34 grams) also makes it the largest pink diamond found by humans so far, these characteristics make this diamond extremely valuable, Commenting on the matter, Angola's Minister of Mineral Resources, Diamantino Azevedo, said: "This record-breaking and spectacular pink diamond found in Lulo will better demonstrate Angola's importance on the world stage." "Isn't it a bit of an exaggeration that a diamond can elevate a country's status?
Why does this diamond appear pink? This question may seem difficult, but it is not easy to answer, and the scientific explanation of diamond color has not yet fully become public opinion. We know that the general material shows a certain color because of the color of some of the chemical elements or compounds, but diamonds have exceptions, because the diamond is basically carbon, in general, there are very few other elemental substances, so pink diamonds and red diamonds and other reasons are pink or red, generally believed to be caused by the deformation of the internal lattice structure, if the atom-level lattice deformation inside the diamond makes it possible to absorb the wide absorption band centered on 550 nanometers in the spectrum, then it will appear pink.
But there is also a theory that la-type diamonds can also produce pink if they have a higher concentration of NV color centers, but this diamond should be mainly synthetic.
However, diamonds in nature often contain very small amounts of impurities, such as some diamonds contain a very small amount of nitrogen atoms, when nitrogen atoms replace some carbon atoms in the diamond lattice, the number reaches about 1/10,000, then the diamond can absorb blue and purple light, it can appear yellow.
If a very small number of boron atoms replace the carbon atoms in them, the diamond will appear blue.
If the diamond comes into contact with strong radiation, it will turn green or partially blue over time because some radioactive particles will enter the diamond and change color. Therefore, the causes of different diamond colors are also different.
So what is the value of this fresh 170 ct rare pink diamond? It is reported that the diamond will hold an international tender auction, and industry insiders predict that it may be sold at a staggering record price, because in 2017, a 59.6-carat pink diamond called "Pink Star" was sold at the Hong Kong auction for $71.2 million (about 480 million yuan), the most expensive diamond auctioned so far, and the newly discovered "Lulo Rose" giant pink diamond in Angola weighed nearly 3 times the weight of the "Pink Star". According to the industry standard, its price is at least 3 times more than it.
Resources:
"China News Network" July 27 article "Foreign media: Angola mined the world's largest pink diamond in 300 years"