Todays items to alch are..

...the Mystic Earth Staff with 105gp profit per alch (100 staffs can be bought per 4th hour) and Godsword Shard 2 with a 55gp profit per alch ( also 100 shards can be bought per 4th hour). The last profitable item is the Dragon Battleaxe with 157gp profit per alch (again, 100 can be bought per 4th hour). Todays Nature Rune price is 245.