A 119A No.
Cunning Brilliance lasts for 1 minute, once per day. The minimum requirements for item creation are as follows:Originally Posted by Dungeon Master's Guide, page 283A 119BOriginally Posted by Player's Handbook, page 88
The required costs must be paid ahead of time (i.e., spend the XP and use up materials as specified for the item before any creation work is attempted). Then the necessary conditions must be met for the time required (required item creation feats, access to a laboratory or magical workshop, and so forth). After 8 hours of work each day, any needed checks are made. If multiple days of work are required, repeat for each day.