Hi sindbad dude! my pearls are loose pearls originated from Sulu, its a saltwater natural pearls, there are different types of pearls which only expert can distinguish the real one. Btw, the largest and famous pearl on today's records so far is discovered from Sulu, it's called "Pearl of Allah", it was discovered by a Muslim diver from Philippines at Sulu sea. They rename it to Pearl of Lao-Tze. It's today's value is $40,000,000 Wow! You can browse to google and search "Pearl of Allah" or famous pearls. Natural pearls are only sold at Alfardan Jewelry in Qatar to my knowledge since its quite expensive though. But depends on the qualities too.

@E46M3, thank you so much for the infos. But they dont have the machine and laboratory here. They told me it has to be sent to UK, whew! There are few expert people who can know by looking only but unfortunately out of town.