In fact, it didn't even increase the price.
Legal sales of ivory in China spurred more demand and poaching increased.
Those are the FACTS.
"Ivory destruction ceremonies have been a litmus test for where a country stands on the ivory trade ever since Kenyan President Daniel Arap Moi torched 13 tons of ivory in 1989, setting the stage for a vote to ban international trade in ivory by parties to the Convention on International Trade in Endangered Species (CITES).
That ban went into effect in 1990. Six months later, the U.S. ivory market collapsed*. [see below]
But the ban did not last. In 1999 and again in 2008 parties to CITES voted to allow ivory sales.
The first sale was of 55 tons to Japan and the second, of 115 tons to Japan and China. In the wake of the China sale, elephant poaching and ivory trafficking have boomed.
As recently demonstrated by criminal cases in New York and Philadelphia, America's legal ivory market has offered an incentive for ivory smugglers.
In 2012, New York state announced guilty pleas by two ivory dealers. In 2011, U.S. Fish and Wildlife Service (USFWS) agents raided the African art
store of Philadelphia African art dealer Victor Gordon, seizing an estimated ton of ivory from his facilities and his customers."
http://news.nationalgeographic.com/n...united-states/
*U.S. Ivory Market Collapses After Import Ban
Published: June 05, 1990
"A YEAR after the Federal Government banned the importation of ivory from the African elephant, the commercial ivory market in the United States has collapsed, a study by a conservation group has found.
Demand for ivory has plummeted, dragging down the price of products still legally available in this country, as well as the price of ivory obtained
illegally in Africa, according to a draft of the report being released today by the World Wildlife Fund.
Moreover, with demand down, the ban has evidently not spurred more poaching and smuggling in Africa, as had been feared, the report says.
''The U.S. market for ivory is dead,'' said Ginette Hemley, director of the Washington-based Traffic USA, a division of the World Wildlife Fund that
tracks trade in endangered species. In the last decade alone, the number of elephants has fallen from 1.3 million to 609,000, primarily because of poaching in Central and East Africa."
http://www.nytimes.com/1990/06/05/sc...mport-ban.html