The 31-year-old new mom teamed up with Gemfields and Marina B to design an emerald ring whose profits will go toward the building of a maternity clinic, Gemfields Nkana Health Center, in Zambia, where the Gemfields mine is located.
"Carrying a child and bringing new life into the world marks the start of an incredible journey," Kunis says in a video about the ring.
The ring is quite breathtaking, retailing for $4,800 and made of 18-karat yellow gold with a Gemfields Zambian emerald included. The "Mila Motherhood" ring is available on Marina B's website.
So, why emerald? "Precious green emeralds are traditionally symbols of motherhood, wisdom and long lasting love," Kunis says. "But they're also symbols for hope in many cultures."