By StyleWatch
Updated October 20, 2009 03:54 PM

Kevin Mazur/WireImage

When co-founder and Global Ambassador Alicia Keys wanted to raise money for her charity Keep-A-Child Alive, a charity that is dedicated to providing life-saving anti-retroviral treatment, care and support services to families whose lives have been affected by HIV/AIDS in Africa and India, she called upon her famous friends, of course. Stars like Halle Berry, Chris Martin, John Mayer, Queen Latifah, Iman and Padma Lakshmi joined the singer for a night of glitz and glam in New York City where Halle proved to be the night’s heaviest bidder, taking home a one-of-kind, 18k gold, blue kyanite and ruby necklace for $40,000 — all of which benefited Keep-A-Child-Alive. The necklace, which was co-designed by Alicia for jewelry line The Barber’s Daughters, is inscribed with an inspirational quote from the singer that says “Always shine/ light on the/world./Alicia Keys”. And while Alicia proudly wore the necklace during the event, Halle took it home. You can find similar (and less expensive) versions of the necklace at