Well, it is a very pertinent question and we get a host of queries from people all over the world asking whether the sale of ivory is illegal. However, I’ll like to clarify that ONLY elephant ivory is illegal for trade/sale/purchase while mammoth tusk ivory is the only LEGAL ivory in the world.
In the last few weeks, there have been changes in the U.S regulations of elephant ivory trade, banning it completely. Thus, if you are trying to sell old, pre-1989 elephant ivory, it would still be illegal to do so. But if you have mammoth ivory art pieces or even in raw form, you can sell it with ease.
The major reason for this demarcation is that elephants are still being illegally killed for ivory and by actively banning its sale and purchase including old ivory products; maybe elephant tusks would lose their charm.
On the other hand, when mammoth tusk ivory is readily available with the same luster and shine, add to it the historic value, why even bother about elephant ivory? By legal ivory, enjoy it, sell it or pass it down the generations as heirlooms.