Mason-Kay has the ability to positively identify treated jadeite ("B" grade jade) with an infrared spectrometer. They're currently the only commercial jade jewelry company to use infrared spectroscopy to test for polymer impregnation. Guarantees this piece of jade as natural, untreated jade, also known as'A' Jade. It has been neither color-enhanced nor polymer-impregnated. Warranties that the manufactured piece is free of defects and will repair it at no charge should a defect be found.
This item is in the category "Jewelry & Watches\Fine Jewelry\Necklaces & Pendants". The seller is "billythetree" and is located in this country: US.This item can be shipped worldwide.