Pailin was originally covered with forests and full of animals and different gems.
Around the 18th or 19th century, there was a group of hunters in Cambodia, who increasingly went after the wildlife. Until they arrived at the current Pailin. It was a jungle with tall trees, fields and rivers. The hunters saw otters that swam and they made to their heels when they saw people. The hunters then went to the place where the otters had played together.
They saw small clear stones and everyone took a rock out to show in their homeland. Their friends and their family Arriving in the homeland, there were locals (it was said that they came from Kola in Chanthaburi Province Siam were) very surprised. They understood that they were precious stones.
Every time, when the hunters were back in the jungle, they took some stones. They broke the stones and polish them until shiny gems with high purity.
The hunters knew that this was a way of earning money. They often returned. To the old place From that moment Pailin was important as a trading center.