This is what I found online about it. Real jade . By expert

The pipe is constructed from two pieces of apple-green jade, all with a smooth polish. The opaque jade is of a striking apple green tone with scattered cloudy pale inclusions.

Provenance: The collection of Ted Adameck, USA, and thence by descent in the same family. Ted Adameck (1924-2019) was a legendary collector of Japanese Netsuke, active for many decades, operating two galleries in Honolulu and writing countless articles and books on the subject as well as many others on Asian art and culture. Condition: Very good condition with expected old wear and minuscule nicks here and there. With bowl - The hollowed half of the jade pipe with traces of use including minor pockmarks

Weight: 381.7 g Dimensions: Length 35.5 cm