u sure i thought it was Flawless that worked on all weps, actually im sure of it, er well i donno if Chips do that but i do know 3 flawless + one magic wepon(any type) = the same type of magic wepon..

and to answer ur Q the type of gem makes no diffrence on the mods of the item...

Shards of Dayala Simya 65 Cleric Bartux 65 Magi