This Diamond horseshoe necklace is available in Malachite, Turquoise and Lapis. Horseshoes have become known as a symbol of protection and to give good luck . The legend is believed to date back to the middle ages when evil forces were supposed to be repelled by horseshoes. 3.11 Carats Malachite 21 round Diamonds (.324) 2 Diamond Baguettes (.18 each) 20x20mm 18 inch chain