Where do I find or craft or buy Soldier's Jewel?
It’s a pvp only item.
In sPvP the armor has no starts – it’s all on the amulet + jewel.
Ohhhh doh! So it’s only used in sPvP and not in Wv3?
there isnt a jewel with those stats, sorry.
You can get exotic jewels with those stats in wvw. Only way to get.
You can get exotic armor with those stats from some dungeons or karma (only 5/6 pieces from karma though). Quickest way is karma.
If you want tankier stats my advice is to get the 5 temple karma pieces, use knight (tough/prec/power) jewellery and either knight or dungeon pow/tough/vit weapon. Basically start out with karma+knight mix and replace as you get more from dungeon/wvw. I’m not really sure how much of a difference these tanky stats would make for wvw since the damage is ridiculous. They make a lot of difference for dungeon outside of one shot type abilities.