With the PTR there are new prices for big part of the enchants. The mats for a lot of them are reduced greatly, so now is the time to sell your mats or wait for the new enchant reagents to hit live. here is the list i found with the old -> new prices.
Chest
Enchant Chest: Powerful Stats - 15 Infinite Dust/4 Abyss Crystal -> 4 Dream Shard/4 Abyss Crystal
Enchant Chest: Super Health - 20 Infinite Dust/10 Greater Cosmic Essence -> 20 Infinite Dust/4 Greater Cosmic Essence
Enchant Chest: Greater Speed - 24 Infinite Dust/12 Greater Cosmic Essence -> 16 Infinite Dust/4 Greater Cosmic Essence
Enchant Chest: Greater Mana Restoration - 20 Infinite Dust/8 Greater Cosmic Essence -> 4 Infinite Dust/4 Greater Cosmic Essence
Feet
Enchant Boots: Greater Assault - 35 Infinite Dust/5 Greater Cosmic Essence/4 Abyss Crystal ->12 Infinite Dust/1 Greater Cosmic Essence/2 Dream Shard/4 Abyss Crystal
Enchant Boots: Tuskarr's Vitality - 40 Infinite Dust/10 Greater Cosmic Essence/1 Abyss Crystal -> 12 Infinite Dust/2 Greater Cosmic Essence/4 Dream Shard/1 Abyss Crystal
Enchant Boots: Superior Agility - 16 Infinite Dust/6 Greater Cosmic Essence -> 16 Infinite Dust/4 Greater Cosmic Essence
Enchant Boots: Assault - 4 Infinite Dust/4 lesser cosmic Greater Cosmic Essence -> same
Enchant Boots: Greater Fortitude - 3 lesser cosmic Greater Cosmic Essence/3 Infinite Dust -> same
Enchant Boots: Greater Spirit - 12 Infinite Dust/5 Greater Cosmic Essence -> 12 Infinite Dust/3 Greater Cosmic Essence
Enchant Boots: Greater Vitality - 14 Infinite Dust/4 Greater Cosmic Essence -> 8 Infinite Dust/2 Greater Cosmic Essence
Enchant Boots: Icewalker - 8 Infinite Dust/1 Crystallized Water -> same
Wrist
Enchant Bracers: Superior Spellpower - 24 Infinite Dust/16 Greater Cosmic Essence/2 Abyss Crystal -> 6 Infinite Dust/6 Greater Cosmic Essence/1 Dream Shard
Enchant Bracers: Greater Assault - 25 Infinite Dust/15 Greater Cosmic Essence -> 24 Infinite Dust/6 Greater Cosmic Essence
Enchant Bracers: Expertise - 24 Infinite Dust/4 Greater Cosmic Essence -> 14 Infinite Dust/3 Greater Cosmic Essence
Enchant Bracers: Major Spirit - 16 Infinite Dust/12 Greater Cosmic Essence -> 16 Infinite Dust/4 Greater Cosmic Essence
Enchant Bracers: Exceptional Intellect - 10 Infinite Dust -> same
Hands
Enchant Gloves: Armsman - 2 Dream Shard/2 eternal air/2 eternal earth -> 2 dream shard/8 eternal earth
Enchant Gloves: Crusher - 22 Infinite Dust/9 Greater Cosmic Essence/1 Dream Shard -> 20 Infinite Dust/4 Greater Cosmic Essence/1 Dream Shard
Enchant Gloves: Major Agility - 8 Greater Cosmic Essence/1 Abyss Crystal -> 4 Greater Cosmic Essence/4 dream shard
Back
Enchant Cloak: Shadow Armor - 20 Infinite Dust/12 Greater Cosmic Essence/1 Abyss Crystal -> 12 Infinite Dust/1 Greater Cosmic Essence/1 Dream Shard/1 Abyss Crystal
Enchant Cloak: Titanweave - 20 Infinite Dust/10 Greater Cosmic Essence/2 tit bar -> 8 Infinite Dust/2 dream shard/2 tit bar
Enchant Cloak: Wisdom - 30 Infinite Dust/10 Greater Cosmic Essence/6 Abyss Crystal -> 15 Infinite Dust/3 Greater Cosmic Essence/2 Dream Shard/6 Abyss Crystal
Enchant Cloak: Mighty Armor - 20 Infinite Dust/10 Greater Cosmic Essence -> 15 Infinite Dust/2 Greater Cosmic Essence
Enchant Cloak: Major Agility - 18 Infinite Dust/6 Greater Cosmic Essence/2 Dream Shard -> 8 Infinite Dust/2 Greater Cosmic Essence/2 Dream Shard
Weapon
Enchant Weapon: Accuracy - 40 Infinite Dust/8 Greater Cosmic Essence/6 Abyss Crystal -> 20 Infinite Dust/4 Greater Cosmic Essence/4 Dream Shard/6 Abyss Crystal
Enchant Weapon: Berserking - 20 Infinite Dust/15 Greater Cosmic Essence/10 Abyss Crystal -> 12 Infinite Dust/2 Greater Cosmic Essence/10 Dream Shard/10 Abyss Crystal
Enchant Weapon: Black Magic - 25 Infinite Dust/15 Greater Cosmic Essence/10 Abyss Crystal -> 16 Infinite Dust/4 Greater Cosmic Essence/6 Dream Shard/8 Abyss Crystal
Enchant Weapon: Lifeward - 4 Abyss Crystal -> same
Enchant Weapon: Mighty Spellpower - 40 Infinite Dust/20 Greater Cosmic Essence/6 Abyss Crystal -> 16 Infinite Dust/4 Greater Cosmic Essence/4 Dream Shard/6 Abyss Crystal
Enchant Weapon: Superior Potency - 30 Infinite Dust/10 Greater Cosmic Essence/4 Abyss Crystal -> 10 Infinite Dust/2 Greater Cosmic Essence/2 Dream Shard/4 Abyss Shard (supposed to be Abyss Crystal?)
Enchant Weapon: Massacre - 40 Infinite Dust/6 Greater Cosmic Essence/6 Abyss Crystal -> same
Enchant Weapon: Scourgebane - 20 Infinite Dust/6 Dream Shard -> 6 Infinite Dust/6 Dream Shard
Enchant Weapon: Giant slayer - 8 Greater Cosmic Essence/6 Dream Shard -> 2 Greater Cosmic Essence/6 Dream Shard
Enchant Weapon: Icebreaker - 4 Dream Shard/4 eternal fire -> same
Enchant Weapon: Greater Savagery - 6 Infinite Dust/2 Greater Cosmic Essence -> same
Shield
Enchant Shield: Defense - 10 Infinite Dust/10 Greater Cosmic Essence -> 6 Infinite Dust/6 Eternal Earth