in my opinion you should trade this or... put it to the weapons which don't need ias. etc stone crusher 4 charge paladin . ias 4 charger gives nothing but ed is great .
in a baal run i found a 40 ed / 6 str jewel on ladder whats it worth? i've never found one before us west ladder
On nonladder, it would be worth quite a bit. Check into whatever your equivalent of 'palapk' games are. People in there are usually trading fairly well for them, if they have good STR mods.