Or better yet, use it on a zelot till it hits 1 durability, and then you retire it to a merc, or trade it to someone who needs it for a merc. Doesn't matter if it has 10,000 dur or 1 dur, a merc could care less.
I got a 2.5k armour waiting for my defiance merc at lvl 54. I'v seen stones hit 3.5k, so it's pretty crazy defense. And they are pretty cheap to make rune-wise.
I know of a couple ppl with indestructable stones that where zod'ed back in .09. Then had there rune/jewels removed in 1.1 and are now indestructable 3k+ defense armours. Lucky people who choose to keep these around for the patch, or maybe they got some tips from an inside source beta testing the patch?