Rare rings shine at 3rd CIIE in Shanghai (1/6)

A Russian model shows the rare jewelry of French brand Korloff Paris at the third China International Import Expo held in Shanghai, November 5, 2020. (Photo: China News Service/Mao Jianjun)

A 88-carat black diamond worth $37 million is on display at the third China International Import Expo held in Shanghai, November 5, 2020. The black diamond is a product of French brand Korloff Paris. (Photo: China News Service/Mao Jianjun)

A Russian model shows the rare jewelry of French brand Korloff Paris at the third China International Import Expo held in Shanghai, November 5, 2020. (Photo: China News Service/Mao Jianjun)

A 88-carat black diamond worth $37 million is on display at the third China International Import Expo held in Shanghai, November 5, 2020. The black diamond is a product of French brand Korloff Paris. (Photo: China News Service/Mao Jianjun)

A 88-carat black diamond worth $37 million is on display at the third China International Import Expo held in Shanghai, November 5, 2020. The black diamond of French brand Korloff Paris attracted many visitors. (Photo: China News Service/Mao Jianjun)

A 88-carat black diamond worth $37 million is on display at the third China International Import Expo held in Shanghai, November 5, 2020. The black diamond is a product of French brand Korloff Paris. (Photo: China News Service/Mao Jianjun)