I guarantee that you will receive 100% natural amber. It is not copal, artificial, plastic, and synthetic, reconstituted or substitute for amber. Tested in salt water and by UV light. Stone on last two pictures is wet.WE WILL COMBINE MULTIPLE WINS TO SAVE ON. The item "Natural Baltic AMBER Stone rough raw 571 gr Bernstein White YOLK BUTTERSCOTCH" is in sale since Sunday, November 11, 2018. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Amber". The seller is "sovtube" and is located in Kyiv. This item can be shipped worldwide.