Hi Ibrahamim,
What a fine jambiya! I really like the hilt shape and the silver work on the hilt is just lovely!
Regarding the hilt material, I also wouldn't think it animal in origin. The "horns" of Giraffes aren't really horns in the usual definition, but rather bone structures protruding from the top of the cranium, which is covered in living skin. I enclose a picture for illustration.
All the best and thanks for sharing, - Thor
