Elizabeth HolmesKimberly White/Getty StringerElizabeth Holmes, the wealthiest self-made woman in the world, is single.
You could call them the most eligible bachelorettes in the world.
Five of the wealthiest women on earth are still unmarried, according to Wealth-X, a company that conducts research on the super-wealthy. With Valentine's Day in mind, they provided us with a list of the richest bachelorettes in five age groups: 20s, 30s, 40s, 50s, and 60s.Combined, they're worth $46 billion.
Meet five of the wealthiest bachelorettes in the world below, including owners of a biotech startup and a luxury clothing business.

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