Lost necklace at Fanfest/The Rio

This morning I a woke up to find that my necklace was missing, after searching the room it would appear as if I lost at some point last night at either Fanfest or in the Casino/Hotel for the Rio. No has turned any necklaces in at this point to the Lost and Found. It is a silver pendant on a silver chain, it's a pentacle, the star of which is cradled in a crescent moon that has a Celtic knot inside of it. The Star has a spiral pattern in the center. I have been wearing this necklace since 2006 and had maintained it regularly so I am not sure why it fell off but if you see it please either post here or hand it in to lost in found. It's not worth much in terms of monetary value, but it's a very special necklace to me and I treasure it. Any help would be appreciated