I just looked at the Honora website and looked at the clasps on their necklaces....not even close.
The clasp on the necklace is this style if that can help with ruling stuff out.
http://www.cathaygems.com/925S|14KG_...ls_clasps.html
I can get pictures on Monday of the necklace.
I'm leaning toward cultured freshwater for some reason....just a hunch. Doesn't explain the luster that the pearls have which is so unlike the luster of a cfwp.