Spell penetration gems

Bonuses for spell penetration can be found on blue, green, and purple gems, but the currently provides penetration as well. This is believed to have been an error in its itemization, but Blizzard has thus far made no mention of fixing it, which makes it a valuable gem for filling yellow sockets in PvP gear for DoT-based casters (who do not typically care about spell crit and may prefer spell penetration to intellect).
Color 	Name 	Effect(s) 	Effect(s)
Blue 	Stormy Azure Moonstone 	+8 Spell Penetration 	
Blue 	Stormy Star of Elune 	+10 Spell Penetration	
Blue 	Stormy Empyrean Sapphire 	+13 Spell Penetration	
Blue 	Stormy Chalcedony 	+15 Spell Penetration	
Blue 	Perfect Stormy Chalcedony 	+18 Spell Penetration	
Blue 	Stormy Sky Sapphire 	+20 Spell Penetration	
Blue 	Stormy Majestic Zircon 	+25 Spell Penetration	
Green 	Radiant Deep Peridot 	+4 Spell Penetration 	+3 Critical Strike
Green 	Radiant Talasite 	+5 Spell Penetration 	+4 Critical Strike
Green 	Radiant Chrysoprase 	+5 Spell Penetration 	+5 Critical Strike
Green 	Radiant Seaspray Emerald 	+6 Spell Penetration 	+5 Critical Strike
Green 	Radiant Dark Jade 	+8 Spell Penetration 	+6 Critical Strike
Green 	Shattered Dark Jade 	+8 Spell Penetration 	+6 Haste
Green 	Tense Dark Jade 	+8 Spell Penetration 	+6 Hit
Green 	Perfect Radiant Dark Jade 	+9 Spell Penetration 	+7 Critical Strike
Green 	Perfect Shattered Dark Jade 	+9 Spell Penetration 	+7 Haste
Green 	Perfect Tense Dark Jade 	+9 Spell Penetration 	+7 Hit
Green 	Radiant Forest Emerald 	+10 Spell Penetration	+8 Critical Strike
Green 	Shattered Forest Emerald 	+10 Spell Penetration	+8 Haste
Green 	Tense Forest Emerald 	+10 Spell Penetration	+8 Hit
Green 	Radiant Eye of Zul 	+13 Spell Penetration	+10 Critical Strike
Green 	Shattered Eye of Zul 	+13 Spell Penetration	+10 Haste
Green 	Tense Eye of Zul 	+13 Spell Penetration	+10 Hit
Prismatic	Stormy Dragon's Eye 	+43 Spell Penetration	
Purple 	Mysterious Shadow Crystal 	+8 Spell Penetration 	+7 Spell Power
Purple 	Perfect Mysterious Shadow Crystal	+9 Spell Penetration 	+8 Spell Power
Purple 	Mysterious Tanzanite 	+5 Spell Penetration 	+6 Spell Power
Purple 	Mysterious Twilight Opal 	+10 Spell Penetration	+9 Spell Power
Purple 	Mysterious Dreadstone 	+13 Spell Penetration	+12 Spell Power
Category:Jewelcrafting crafted gems