The late Elizabeth Taylor's great passion, her staggering collection of massive diamonds and rare vintage jewels, will be auctioned by famed auction house Christie's, sources told PEOPLE.

While Christie's is refusing to confirm the report and no date has been announced, the mag reports the auction house will disperse the collection valued at more than $150 million.

Taylor speculated before her death that one day her private collection -- said to rival that of some royal households -- would be "scattered around the four corners of the world."

The 79-year-old Academy Award winning actress, who died from congestive heart failure on March 23, had worked with the auction house in the past.

In 2002, Taylor allowed Christie's to host a public exhibition of her jewels, including the famed 33-carat Krupp diamond, the La Preregina Pearl by Cartier and the heart-shaped Taj Mahal diamond. That exhibition benefited her signature charity, The Elizabeth Taylor AIDS Foundation.