1.you will get All legendary gems which are level 0 in Diablo 3 Ver 2.1, include：
     Bane of the Powerful
     Enforcer
     Moratorium
     Zei's Stone of Vengeance
     Simplicity's Strength
     Bane of the Trapped
     Wreath of Lightning
     Gem of Efficacious Toxin
     Pain Enhancer
     Mirinae, Teardrop of the Starweaver
     Gogok of Swiftness
    Invigorating Gemstone
     Boon of the Hoarder
    Taeguk
2.You need to provide your account.
3.Each legendary gem has the different special property, it will unlock the second property when it gets level 25.
4.The legendary gems drop from the final boss of Greater Rifts, and it can be socketed only into Rings and Amulets.
5.ETA 1-4 Business Days.