The world's largest green diamond, a 5.03-carat fancy vivid green diamond called 'The Aurora Green' will go under the hammer at Christie's in Hong Kong. As part of its 30 year anniversary in Asia, Christie's is also offering 30 special lots including a Kashmir sapphire bracelet estimated to fetch up to $10 million (USD). Christie's will hold its spring auction in Hong Kong from May 27 to June 1 from fine wines, contemporary art and ancient ceramics to accessories. James Valles reporting (BNO News)