I was offered by a guy in Kupang, Indonesia with below pearls:
Quick question, I know the best solution is to send it to GIA Thailand but just from those photos can anyone determine it whether these pearls are natural or fresh water?
They are south sea pearls. Possibly from Lombok or other islands of Indonesia. Lombok pearls, however, don't have the luster of ssps from other islands because of the sea water pollution.
I agree ..first thought was SS pearls . Also ..you should do a bit of reading here so you know what you are looking at .... GSS can be dyed so do check for that ...again ..do some quick research. Good luck