Diamonds Are Nature's Hardest Substance

Essay

Diamonds are nature's hardest substance. Classify each of the following diamonds as land, labor, capital, entrepreneurship, or none of the above. Explain your choice.
a. an unmined diamond
b. a diamond in DeBeers' vault (DeBeers is the world's biggest diamond mining company.)
c. a diamond in a jeweler's display case at the shopping mall
d. a diamond on your or your fiancée's finger
e. an industrial grade diamond in your dentist's drill
f. the diamonds in the blade that the highway department uses to cut concrete