Legendary Gems are gems introduced in the patch 2.1 of Diablo III, that are only socketable in amulets and rings (except the Gem of Ease, which can only be socketed into a weapon, and Helm-only Red Soul Shard). Most of these gems can only drop from Rift Guardians in Greater Rifts, though one can be found as a drop from Greed in the Treasure Realm. In addition to the gems being unique equipped and account bound, any one character can not even receive any gem that they already have in their possession, including the shared stash. The gems are dropped at Rank 0 and can be upgraded by speaking with Urshi. Legendary gems do not work when equipped on a follower.