When I mouse over my helm it would show the regular information, but at the very end there was this attached: "(-9999 Charges)"
Just in case the items/gem matter,
Vengeful Dragonhide Helm - http://www.wowhead.com/?item=33672
Relentless Earthstorm Diamond - http://www.wowhead.com/?item=32409
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Meta Gem Info Output
3
572,971
4,335