Sailor Moon: Episode Two

A Logical Departure

Usagi, Minako, Makoto, and Rei are all at the jewelry store. Each has picked out something that they would like to have. There is a necklace, bracelet, ring, and earrings and each one has one of the following gems in it: moonstone, turquoise, opal, and jade. Can you figure out who got what?

Clues
Moonstone = 3 Earrings =10
Turquoise = 7Bracelet = 11
Opal = 5Necklace = 12
Jade = 2Ring = 9


What is the product (multiply) of what Rei bought? (EX: If she bought a moonstone ring, the answer would be 27)