Thanks for the mats FK!
Made it to 385, so it looks kind of like this:
350 - 395
Buy around 55 from any of the following gems. At 375, these recipes will turn to yellow so you might to buy more gems.
[Bloodstone], [Chalcedony], [Dark Jade], [Huge Citrine], [Shadow Crystal], [Sun Crystal]
Cut any gem you want. Seriously, there are like 50 new green gem recipes, I won't list all of them. Go to your trainer, learn one and make that recipe around 55 times.
395 - 400
Make 5 from any of the following items:
5 x [Bloodstone Band] - 5 Bloodstone, 10 Crystallized Earth
5 x [Crystal Chalcedony Amulet] - 5 Chalcedony, 10 Crystallized Earth
5 x [Crystal Citrine Necklace] - 5 Huge Citrine, 10 Crystallized Earth
5 x [Sun Rock Ring] - 5 Sun Crystal, 10 Crystallized Earth
400 - 420
23 x [Stoneguard Band] - 46 Eternal Earth
or
23 x [Shadowmight Ring] - 23 Eternal Earth, 23 Eternal Shadow
If you have some [Monarch Topaz], [Twilight Opal], [Autumn's Glow], [Forest Emerald], [Sky Sapphire] or you can buy these for cheaper than the Eternals, go to Wintergrasp and buy the jewelcrafting recipes sold by Stone Guard Mukar (Horde) and Knight Dameron (Alliance). You can only buy these recipes if your faction controls Wintergrasp. One recipe costs 19 honor, which means if you stay here and do a few daily quest while the battle is on, you can buy most of the recipes.
All of these recipes are orange up to 410 and yellow up to 425.
420 - 425
Check the previous part if you don't have Titanium Bar.
5 x [Dream Signet] - 5 Titanium Bar, 5 Dream Shard, 5 Forest Emerald