A golden laurel leaf from the crown of French emperor Napoleon Bonaparte is displayed at the 5th China International Import Expo in Shanghai, October 28, 2022. This delicate leaf is as light as a feather. /CFP
A 34-carat emerald ring which witnessed the love of Tsar Alexander I is displayed at the 5th China International Import Expo in Shanghai, October 28, 2022. /CFP
A golden snuffbox printed with a portrait of Mughal emperor Shah Jahan and his wife Mumtaz Mahal on the lid is displayed at the 5th China International Import Expo in Shanghai, October 28, 2022. /CFP
A golden snuffbox embedded with dozens of diamonds kept by the German royal household is displayed at the 5th China International Import Expo in Shanghai, October 28, 2022. /CFP
A total of 22 pieces of jewelry collected by European royal families appeared at the 5th China International Import Expo in Shanghai. Among them are a golden-laurel leaf from the crown of French emperor Napoleon Bonaparte, the world's biggest portrait diamond and a golden snuffbox printed with a portrait of Mughal emperor Shah Jahan and his wife.