I'm not sure. With rare things, you only need a few people willing to pay ridiculous prices for the behavior to continue. And the more rare it becomes, the more

I'm not sure. With rare things, you only need a few people willing to pay ridiculous prices for the behavior to continue. And the more rare it becomes, the more coveted as well by people who can look beyond the moral implications of killing elephants. But, if kids in China start wearing fake ivory necklaces to school and can buy them for a few bucks, why would you pay thousands more for something that is virtually indistinguishable? The trick is to make it so close to actually ivory (or genetically grown to be identical). If it looks like a bad knock off it won't work.