Tesla CEO Elon Musk's ex-girlfriend Jennifer Gwynne has raised over $165,000 from the auction of photos and memorabilia gifted to her by Musk during their year-long relationship in 1994-95. A gold necklace with a small green emerald that Musk gave to Gwynne as a birthday present sold for $51,000, whereas Musk's previously unseen photographs sold for as much as $21,000.