First, visit any trainer in the main cities of old Azeroth - just ask a guard, and learn Apprentice Jewelcrafting. You can train your Jewelcrafting up to 450 in Dalaran.
Save these, you will need them later.
20 x [Tigerseye Band] - 20 Tigerseye, 20 Delicate Copper Wire
You can make 20 x [Malachite Pendant] too.
Learn Jewelcrafting Journeyman.
50 x [Bronze Setting] - 100 Bronze Bar
Save these, you will need them later.
20 x [Simple Pearl Ring] - 20 Small Lustrous Pearl, 20 Bronze Setting, 40 Copper Bar
or
20 x [Gloom Band] - 20 Bronze Setting, 40 Shadowgem, 40 Delicate Copper Wire
Make [Ring of Silver Might] if Silver Bar is cheap on your server.
You can also continue to make [Ring of Silver Might]
If Heavy Stone is cheap (usually it's not) make this one up to 130 if you want to.
30 x [Pendant of the Agate Shield] - 30 Moss Agate, 30 Bronze Settings
The design sold by these NPCs.
If you prospect your own Ores, usually you will get a lot of [Lesser Moonstone] too, but even if you don't prospect the Ores, sometimes 2 Lesser Moonstone is cheaper than one Moss Agate. So get the recipe [Design: Amulet of the Moon] and use up all your Lesser Moonstone. The design is sold by these NPCs.
Learn Jewelcrafting Expert.
Save these, you will need 45 of them later.
Learn Jewelcrafting Artisan.
The recipe will go yellow at 210, so you might need to get more Citrine if you are unlucky. If you are lucky you will only need 20.
25 x [Citrine Ring of Rapid Healing] - 25 Citrine, 50 Mithril Bar
Stop making these at 250 and only make more if you need it.
20 x [Simple Opal Ring] - 20 Large Opal, 20 Thorium Setting
If you reach 265 and you have some Azerothian Diamond, or it's cheap (I doubt that) you can start to craft [Diamond Focus Ring] too.
or
10 x [Sapphire Pendant of Winter Night] - 10 Blue Sapphire, 10 Essence of Undeath, 10 Thorium Setting
10 x [Emerald Lion Ring] - 20 Huge Emerald, 10 Thorium Setting
Go to Outland and learn Jewelcrafting Master.
Now from this part of this Jewelcrafting guide, you will use recipes that are already yellow to you and since whole WoW is pretty random, you might just need 5 gems to reach your desired skill or maybe 10.
A nice alternative to 300-315 is this pattern:
15 x [Prismatic Black Diamond] - 15 Black Diamond
When you learn these recipes, they are already yellow. I suggest you to cut 30 from any of the following gems, then you should reach 320.
[Teardrop Blood Garnet]
[Brilliant Golden Draenite]
[Solid Azure Moonstone]
[Radiant Deep Peridot]
[Inscribed Flame Spessarite]
[Glowing Shadow Draenite]
Make 5-7 from any of the following gems.
[Bold Blood Garnet]
[Bright Blood Garnet]
[Gleaming Golden Draenite]
[Jagged Deep Peridot]
[Luminous Flame Spessarite]
[Royal Shadow Draenite]
[Sparkling Azure Moonstone]
Save these, you will need them later.
10 x [Mercurial Adamantite] - 40 Adamantite Powder, 10 Primal Earth
Make a few from any of the following gems, if you didn't reach 335.
[Enduring Deep Peridot]
[Glinting Flame Spessarite]
[Runed Blood Garnet]
[Shifting Shadow Draenite]
[Thick Golden Draenite]
[Purified Jaggal Pearl] - This one turns green at 332.
Make 5-7 from any of the following gems.
[Dazzling Deep Peridot]
[Delicate Blood Garnet]
[Potent Flame Spessarite]
You can go to Hellfire Peninsual and find Kalaen if you are Horde, Tatiana if you are Alliance. These NPCs sell the following recipes.
[Rigid Golden Draenite]
[Sovereign Shadow Draenite]
[Smooth Golden Draenite]
You can continue to make the gems above, if you didn't reach 350 by making the rings below.
10 x [Heavy Adamantite Ring] - 10 Adamantite Bar, 10 Mercirual Adamantite
Go to Northrend and learn Jewelcrafting Grand Master.
[Bloodstone]
[Chalcedony]
[Dark Jade]
[Huge Citrine]
[Shadow Crystal]
[Sun Crystal]
Cut any random 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.
Make 5 from any of the following items:
5 x [Bloodstone Band] - 5 Bloodstone, 10 Cristallyzed Earth
5 x [Crystal Chalcedony Amulet] - 5 Chalcedony, 10 Cristallyzed Earth
5 x [Crystal Citrine Necklace] - 5 Huge Citrine, 10 Cristallyzed Earth
5 x [Sun Rock Ring] - 5 Sun Crystal, 10 Crystallized Earth
or
23 x [Shadowmight Ring] - 23 Eternal Earth, 23 Eternal Shadow
You better make this yellow recipe until it turns green, because after this, there will be only meta gems, and they are a lot more expensive. Forest Emerald is usually the cheapest gem.
7 x [Dazzling Forest Emerald] - 7 Forest Emerald
Buy 15 [Skyflare Diamond] or [Earthsiege Diamond]
There are plenty of meta gem recipes, choose one of them and make it 15 times. You can learn some recipes from your trainer, and some of them are sold by Tiffany Cartier in Dalaran, there is also a lot of them dropped by bosses and mobs around Northrend.
I hope you liked this World of Warcraft Jewelcrafting guide, GZ to 450!