Since we got some new necklaces recipes i'll make a list of wich there all are.
Necklaces give resistance to a certain element, physical melee or ranged dmg.
The new necklaces in 4.1 can be chipped for + hp, + sp and +stats.
While these arent to great, they are needed to craft the made series.
They can also be gotten entirely by exchanging 35 vet tokens at bounty hunters since 5.0.
Second series to hit the games was enhanced series, providing 10% dmg reduction of a single stype makes them quite usuable. and are also needed to craft some of the later series necklaces. see below for notes on droprate of the rec.
Enhanced recipes drop of Ortega, Griffon and many other raid bosses, most others seem to be only able to drop 1 kind of the enhanced series tough.
The first chippable series with only 5% dmg reduction. quite good quality. Some drop crafted of the new raids as Prison, Basement and Bounties.
Good quality necklaces, with crazy list of mats by now, but chippable with better stats then made and 2% more dmg reduction. ps crystal of made necklace is merely a made necklace destroyed on the el dorado furnace/oven thingy.
Cut recipes drops from many zones, fi 800k, reb sewers, Capybara plantation, Bahamar caves flr 2, as well as possible drops of Uranus, Rafflesia and Bribantra's and Castilla Relics.
the best of the best till 5.o at minimum. 10% res and nice chippable stats, a must have for the rich people :P odd bunch in the series tough since all others need at least 1 necklace of the same type, for this it doesnt seem to matter, just need 1 cut necklace anviled again.
Crafted recipes drop from Garim, HWC, Chaos Tower and Prison Raid.
That where the stats of the necklaces when crafted, but they can be chipped so here we go again:
GE wiki / Wordwood