The value of green onyx is affected by a few variables, including color, clearness, cut, and carat weight. The most valued patterns show a rich, uniform green tone, liberated from noticeable debasements or imperfections. Moreover, very much cut stones with balanced designs order greater costs, as do bigger carat loads.
- https://www.sagaciajewelry.com/blogs/news/green-onyx-value-price-and-jewelry-information
- United States