We have artificial ivory.
There was a piece on NPR last year where a taxidermist re-created ivory so exactly that no-one could tell the difference. They embedded the tusks with transmitters, sold them to smugglers, and tracked their movements.
There have been ivory substitutes for ages. For years, people have heated a straight pin and stuck it into an inconspicuous area of a carving to see if it’s genuine ivory or not – when burned, ivory supposedly smells like burnt hair. I think the Ivory substitutes and synthetics are plenty good for the Western market, but the orientals want the read deal.
Bone is a good substitute, but with the obvious disadvantage of being hollow. I see a lot of Oriental carvings where they have plugged the hole in the bone with a bone plug before they carved.
Oh, so the answer to your question is “No”. Asians demand the real deal, and that’s what they pay top dollar for.