Ebony is freely tradable on the market without any trade restrictions. Due to the extremely low trade volumes compared to industrially used wood species such as meranti, teak, ipé, bongossi, bangkirai, cumaru, there are no certificates for ebony, because traded quantities are well below 0.1% (for white ebony even below 0.0001%) of the volume of annual imports of individual other wood species. There is a CITES-listed protection status for ebony from Madagascar (Diospyros perrieri), which is endemic there, this species may no longer be exported. Discussion of the overexploitation of ebony in Madagascar by the musical instrument industry has often led to generalization of this trade ban among laypeople, with no distinction made between the rather different species from Madagascar and West Africa. Ebony from West Africa is subject to absolutely no trade restrictions and does not need to be certified!
One more tip to make your work a success: Ebony, like all very hard and dense types of wood, tends to crack at end-grain surfaces especially in large cross-sections in dry and warm rooms, you must expect finest cracks to form during processing. Please do not expose the wood to sudden and strong temperature and humidity changes and protect the end grain surfaces with a thin coat of white glue