This is a natural stone necklace I purchased at Tomorrowland several years ago. I am selling it because I haven't had the opportunity to wear it. I believe it is in beautiful condition with no scratches or stains, but please understand that it is a used item. Stone: Smoky quartz Shape: Tear-drop shape, close to round Stone size: Approximately 9mm (diameter) Necklace length: Approximately 38cm Chain: K18 There is no certificate of authenticity. Also, there is no brand engraving on the necklace.