Yes
Emerald-Green
Tammy Stones's birth name is Stones, Tammy Renee.
Emerald Amber Rock's birth name is Rock, Amber Emerald.
Connie Emerald's birth name is Constance Gladys O'Shea.
You must obtain Deoxys from Birth Island in Emerald.
Emerald or Chrysoprase
Birth island.
The birth stones ... December = turquoise January = Garnet
Birthstones are different for each month of the year. The site Birthday Gems has a list of each month and the stone that corresponds with it. You would need to find out the months of birth, and then match the stones.
You go to birth island
On Birth Island.
Yep