Submitted by: Thorious Novex
This item can be purchased from Merchants:
Daemon Sapphire Seal dropped by the mid level mobs found in Darkness Falls (DF) and can be redeemed for items at the merchants near the entrances of DF for each realm.
This is also a possible winning for 2 card matches in Trifecta.
Per patch 1.100 (12.15.09):
* Darkness Falls: All seal items have been increased in quality. Emerald items are now 98% quality, Sapphire items are now 99% quality, and Diamond items are now 100% quality.