Natural Omphacite Jadeite 天然绿辉石翡翠
The jadeite is natural Burmese jade. It is well known in the trade as 墨翠. It looks black, however, under strong light, it is green.
Despite that, there is also a difference in quality. For a pendant which is very translucent with even green seen under the light, it can be in ten of thousands. Whereas for some, they can be in the hundreds range. However, without using a light to shine through, they look quite similar, showing black.
Such jadeite is also commonly carved with matt effect on it.