The Mike Todd Diamond Tiara.

An Antique Diamond Tiara, circa 1880. Gift from Mike Todd, 1957. Estimate: $60,000-80,000

As noted in her 2002 book My Love Affair With Jewelry, Elizabeth Taylor’s husband Mike Todd presented her with this antique diamond tiara, saying, “You are my queen.” 

Elizabeth Taylor wearing the tiara to the Academy Awards in Los Angeles in 1957, where Todd’s film Around the World in 80 Days won for Best Picture.