NGTC identification certificate. NGTC is one of the top international laboratories accredited by Catawiki. Certified items can ensure the accuracy, fairness, and traceability of products. Digital certificate link: https://ecard.ngtc.com.cn/page/detail-cer-other?c=ZYTD801468&v=32806646 Colour: Bluish green Weight: 29.26g Size: 52*52*6 mm The circular plaque has a regular shape, smooth and rounded lines, and rich carving details. It presents the contrast between "Buddha and demon, good and evil" in the language of jade carving, with a strong Zen flavor.  The middle position is carved with the meditator, symbolizing every practitioner.Carving huge devil and Buddha portraits on both sides, symbolizing justice and evil in the human heart.  Symbolizing the inherent difference between good and evil in human nature, as well as the Buddha demon relationship, it constantly reminds the wearer to stick to their true heart, distinguish right from wrong, and remain clear headed in the face of temptation.