The Koh-i-Noor diamond is placed in the throne of the ruler of the __________. The long-ruling queen of ________ passed away in 2022 and Charles V has become the King of _________. Fill in the blanks.
A carat is a term that you will hear commonly with respect to diamonds. What do we measure in carats?
The ________________ is a 45.52-carat diamond that was taken from the Kollur Mine in the 17th century. It is blue because of tiny quantities of boron. You will find it at the Smithsonian Museum in Washngtonm DC. Fill in the blank.