What is the Blue Diamond primarily known for? (Easy)
#1: Being a type of gemstone
#2: Being a flavor of ice cream
#3: Being a type of fish
#4: Being a kind of flower
What is the significance of the Blue Diamond in global trade? (Hard)
#1: It represents a rare color category in diamonds
#2: It is used as a standard for price valuation
#3: It symbolizes peace and tranquility
#4: It is associated with a famous historical event