On the 18K Serpent Amulet, a gold and diamond serpent winds its way around a finely-polished, natural rock crystal centerpiece. #S# 18K gold+ Natural Rock Crystal+ Blue Sapphire 0.03ct+ Diamonds 0.44ct+ Length: 37.3mm/1.5"; Width: 12.8mm/0.50"+ Imported+ #M# 18K gold+ Blue Sapphire 0.03ct+ Natural Rock Crystal+ Diamonds 1.44ct+ Length: 48.5mm/2.00"; Width: 19.2mm/0.75"+ Imported+