I dont have access to the latest market information. However, generally, the quality of jade is graded based on its color, texture, translucency and other factors. The grades of jade can vary depending on who you ask. Some commonly used grade classifications are A, B, C, and Jadeite A, B, and C. The grading system for onyx may be different from jade. Without any context or specific information, it is difficult to say what grade Chinas Ice Flake Jade Onyx may be classified as.