This is the best jewel crafting guide out there i think when it comes to easily getting from levels 1-375. THe guide doesn't have much in terms of visuals but its a great pocket guide that i used and helped me get to 375 pretty quickly. Click the spoiler tag below to view the Guild Wars 2 Jewel Crafting Guide
First of all you will need per tier:
4 of each gem per tier (number) depends if 6 or 7 gems in the tier.
24(30) settings
12(14) chains
6(7) hooks
6(7) band
6(7) filigree
I will use as example the first tier, but the proces is the same for every tier.
Instead of leveling up by crafting - you level up by discovering new recipes, this gives a lot of exp and skill points.
You can either craft the settings/chains/hooks yourself, or buy them on the trading post, calculate what is cheaper.
The guide:
There are 5 kinds of recipes:
1x Setting + 1x Chain + 1x Gem = Amulet
1x Setting + 1x Chain + 1x Upgraded Gem (Adorned gems) = Amulet
1x Hook + 1x Setting + 1x Gem = Earring
1x Band + 1x Setting + 1x Gem = Ring
1x Filigree + 1x Gem = Adorned Gem
Each tier has 6 different gems, but you will not be able to 'discover' certain gems until your level is high enough.
For the first tier you would start off combing Amber Pebble, Garnet Pebble and Malachite Pebble in these recipes:
Level 1-25:
1x Copper Setting + 1x Copper Hook + gem
1x Copper Setting + 1x Copper Band + gem
Keep doing this until the 2nd half of the tier unlocks as discoverable... In a rare occasion craft some extra things to get to the required level.
Keep doing this until you can create Upgraded gems by combining:
1x Copper Filigree + 1x Gem = Adorned Gem
Then use this item in:
1x Setting + 1x Chain + 1x Upgraded Gem (Adorned gems in first tier) = Amulet
Usually I personally end up like 2 levels below the next tier of craft. Simple craft a couple more Upgraded gems and turn those into amulets.
NPC the created items/ sell on the Trading post / or simply use them
Have fun leveling jewelcrafting in an amazing way!
Arenanet did a great job to reward those that discover new recipes!
1-10 (can be skipped if buying all mats)
Create copper ingots, settings, rings, hooks.
1-25
Amber, Garnet, Malachite pebble to Rings and earrings
1x Copper Setting + 1x Copper Hook + gem
1x Copper Setting + 1x Copper Band + gem
25-50
Pearl, tiger's eye, Turquoise pebble to rings and earrings. After that all tier 1 gems to Amulets.
1x Copper Setting + 1x Copper Hook + gem
1x Copper Setting + 1x Copper Band + gem
1x Setting + 1x Chain + 1x Gem = Amulet
50-75
Tier 1 gems -> Upgraded gems
Upgraded gems -> amulets
1x Filigree + 1x Gem = Adorned Gem
1x Filigree + 1x Gem = Adorned Gem
75-150 The same system with silver
150-225 Same system
Alternatively you can also craft the upgraded gems into rings and earrings, in case you wish to wear those. The amulets are highest exp yield though