10 B28 =30.99 cts 23.8 x 23.8 x 5.7mm Product Details: Material: 100% Natural Type A Burmese Jadeite (Jadite) Condition: All-natural and untreated. Guaranteed: Strictly FTIR tested to ensure: NO Polymer Injections (No B-Jade) NO Artificial Dyeing (No C-Jade) NO Chemical Enhancements Certification: Includes a Certificate of Guarantee confirming the stone is Natural Type A Jadeite