How much would a 40 carat emerald cut canary diamond cost?

It is difficult to provide an exact price for a 40 carat emerald cut canary diamond without seeing the diamond itself, as the price can vary greatly depending on factors such as the diamond's color, clarity, cut, and overall quality. However, based on current market trends and historical sale prices, a 40 carat emerald cut canary diamond of good quality could range anywhere from approximately $10 million to $25 million or more.

It is important to note that the price of diamonds, especially large and rare ones like a 40 carat emerald cut canary diamond, can fluctuate over time due to changes in market conditions, economic factors, and supply and demand dynamics. Additionally, the price may vary depending on the source of the diamond (e.g., a reputable jeweler, an auction house, or a private sale) and the specific location where the transaction takes place.