Crystal Magen David Necklace. Jewish Star of David Crystal Pendant on silver Necklace. Crystal David's Shield Pendant. The Magen David (shield of David, or as it is more commonly known, the Star of David) is the symbol most commonly associated with Judaism and the Zionist Movement and ideology today. It appears on the Israeli flag and the Israeli equivalent of the Red Cross is known as the Magen David Adom (Red Star of David). We are proud in Spreading the Kabbalah Truth Worldwide.