It pretty much says it in the article, these are a variety called Chinese red delicious, probably a sport or maybe not. The only real thing that makes them unique is the exposure to the sun they get and the weather conditions of that climate. We’ve seen this in other apples, the same apple growing at 2 different locations, one turns red the other almost black. We see it a lot in pears too, some people can grow pears that turn bright red while for others they always stay yellow. There is a thread here on the forum that discusses this in detail I believe.
Calling them black diamond when they are really red delicious is the lie but if I were trying to sell them I wouldn’t want to call them red delicious either. Did the photographer use trickery in his images? I don’t know, compare the image below with a normal red delicious apple. There are some darker ones in the bottom photo but none that are dark purple looking. It could be unique if it is a sport but I would bet if you or I got a hold of a scion and grew it, it would not look like it does in the top photo.


It’s not as over faked as this…
Chinese gardeners grow black diamond apples, which are sold in limited quantities and are presented in gift packaging of 6-8 pieces.
Grade Hua-Niu developed by vaccinations. The apples have a brilliant purple color and a pleasant texture, said Yu Wenxin, head of the company Dandong Tianluo Sheng Nong E-Commerce Trade Co., Ltd.
Unique apples grow in Ningchi (Tibet), where there is a lot of sunshine and there is a big difference between day and night temperatures, www.agroxxi.ru writes.
The garden occupies 50 hectares, it was founded in 2012. Only in 2015, 20 thousand trees brought the first quality fruits. In 2017, production will be about 50 kg. Black apples will be put on the market at the end of the year.
Now looking at this image… I don’t know?
