October 27, 2014 - 12:27 GMT hellomagazine.com Mila Kunis has designed a dazzling ring with Marina B and Gemfields to celebrate motherhood. Mila Kunis has celebrated her new role as a mother by designing a chic ring with Marina B and Gemfields. The American beauty and her fiancé Ashton Kutcher became parents for the first time in October when Mila gave birth to baby daughter Wyatt Isabelle Kutcher. Mila Kunis has designed a ring with Marina B and Gemfields To celebrate the exciting milestone in her life, Mila has designed an 18-karat yellow gold ring featuring a sparkling Gemfields Zambian emerald. "Carrying a child and bringing new life into the world marks the start of an incredible journey," the 31-year-old told Vogue. "Throughout history, every culture has its own way of recognising this extraordinary event, often with a gift for mother or child." The Black Swan star, who got engaged to Ashton in February, revealed that careful consideration had gone into her choice of gem when it came to the design process, before she settled on the dazzling green emerald. Mila and Ashton Kutcher have been engaged since February "Precious green emeralds are traditionally symbols of motherhood, wisdom, and long-lasting love," she explained, before revealing that the proceeds from the collection of Motherhood Rings will go to the Gemfield Nkana Health Centre towards their maternity clinic. Mila is currently an ambassador for Gemfields, and starred in a black and white campaign for the brand shot by renowned fashion photographer Peter Lindbergh. "The latest Gemfields campaign was shot by Peter Lindbergh and it was incredibly natural," revealed the Jupiter Ascending actress. "I think it was probably the most natural I’ve ever felt on a shoot! It was all about being free, present and totally at peace with nature and the environment."