Product Description Metal: Jade/Jadeite Size: 31*26*5.5mm Weight: 8g Note: Just a pendant no necklace. Report: Don t offer certified report But All Of my items are tested before i get it from factory you also can retest when you get it.The quality must be guaranteed. Comment: We sell is quality.Please rest assured to buy.Customer is Number one Important. Welcome to give any advice we will do best.