The Unit of Weight Used for Precious Stones Is the Carat

Multiple Choice

The unit of weight used for precious stones is the carat (1 carat = 200 mg, exactly) . If a particular 1.25 carat diamond cost $7000.00, what is the cost of a collection of identical diamonds which weighs 1.00 ounce? [1 ounce = 28.35 grams]

A) $28,000
B) $35,000
C) $16,000
D) $790,000