CLEAN : Christie's unveils largest flawless diamond at Dubai conference

The video discusses the Multi Commodities Center's role in diamond production, highlighting the discovery of a 404 carat diamond in Angola. It details the polishing process that resulted in a 163.41 carat D flawless diamond, the largest of its kind to reach the market, expected to fetch over $30 million.

In which country was the diamond found?

What is the estimated market value of the diamond mentioned in the text?