Which sentence uses a metaphor?

 - Anthony's eyes are bright green emeralds.
 - Anthony's eyes are as green as emeralds.
This sentence uses a metaphor:
Anthony's eyes are bright green emeralds.
The words eyes and emeralds are compared without the word like or as.
This sentence uses a simile:
Anthony's eyes are as green as emeralds.
The words eyes and emeralds are compared using the word as.