Yes, it's true. This is a natural jade flower. Please rest assured.
Judging from the picture on the certificate, this is oily green material, which is relatively low-end in jadeite.
Planting water is also general, and the permeability is not strong.
The market price like this is about 500- 1500 yuan.
If you buy it for 800 yuan, it is not expensive. You can play by yourself or send it to your relatives and friends.