I would like to share my experience.
I was in a small jewelry store and pointed out a dyed FW strand (looks too small to be Tahitian): "Are those dyed FW?". The lady replied: "No, South Seas".

. Then I pointed to several white strands and at least 3 of them are small about 6mm or smaller "What about those?". The lady said: "South Seas, all South Seas.". Maybe "South Seas" is the buzz word now.
I won't be buying from them even if the price is right, not even gold chain. Either they do not know what they are selling or they do it on purpose, which gives me a reason not to give my business there.