Collana Croce da Donna, Delicata Penna Croce Piccola Placcata Oro 18K/Argento Sterling
18K Gold Plating. Are these cross necklace hypoallergenic?. Cross Necklace. Do they turn black or make the skin green?. What is the size of the cross pendant？. Hi, the size of cross pendant are 0.40"(10mm) long and 0.28"(7mm) wide.