Zoe Saldana was definitely holding out on us. The Avatar star got married to Italian artist Marco Perego in secret last summer, but she finally debuted her huge rock. Let's show you why we're green with envy. The exquisite pear-shaped emerald engagement ring likely costs between $18,000 and $32,000, and looks to be six to eight carats. But you don't need a fiance to rock this look. We're showing you how you can get Zoe's look for yourself at Zales
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