APM Monaco Ladies Earrings. SKU: YE9534XG. APM Monaco Single Serpent Kaa Ear Cuff. This ear cuff is crafted from APM Yellow Alloy, made of 95% recycled material, and features a 3-micron layer of 18k gold plating, adorned with white and green cubic zirconia, while being anti-tarnish and hypoallergenic.