J. Crew antique brass statement necklace

Authentic Brand new with tag J.Crew necklace in antique Brass Zinc casting, epoxy stone, cubic zirconia. 18" length w 3" extension chain. I bought it at jcrew boutique long time ago. It's always store in its original cloth pouch. The chain is in vintage distress brass. So, if you see light discoloration, it's the intention of the designer.