To find out how many emeralds the jewelry company used, you can multiply the number of bracelets by the number of emeralds used for each bracelet.
The company made 9 emerald bracelets and used 3 emeralds for each one.
So, the calculation is: \[ 9 \text{ bracelets} \times 3 \text{ emeralds per bracelet} = 27 \text{ emeralds} \]
Therefore, the company used 27 emeralds.