I just checked the AH for bracers with parry and found:
3x Exceptional Strength +1 Bracers of Parrying VIII
2x Insightful Strength +2 Bracers of Parrying VIII
All with the exact (within a minute) same auction timer duration.
While it's not a guarantee these items are exploited dupes, the rarity of either combo is extremely high and it's too much of a coincidence for these to all be on the AH at exactly the same time by the same seller.
I strongly suggest someone looks into this.
16 hours, 20 minutes left on auctions as of about 10pm Pacific on 10/8/2013