The Jonathan Rendell diamond fetches $ 2 million to $ 3 million . 50-carat `` Holy cow ! pearl goes for $ 2 million to $ 3 million . Its value had been estimated at $ 8.8 million .
The Elizabeth Taylor diamond fetches $ 8.8 million . 50-carat `` La Peregrina '' pearl goes for $ 11.8 million . Its value had been estimated at $ 2 million to $ 3 million .