Unscramble the words below, then take the letters from each word as instructed:

LNEAC      Take letters 2 and 4
MLACP      Take letters 2 and 3
INNUO      Take letters 1 and 3
IREPSTGE   Take letters 1,4 and 6
OGOLOYZ    Take letters 1 and 4

Now collect the letters and arrange them to find the name of a gemstone.

Note: The letters should be collected from the unscrambled word (not the original scrambled form) from each of the five groups.