18k Gold Filled Pillow Heart Stud with Cubic Zirconia Stones Around. * Metal : 18k Gold Filled * Size: 12 mm stud * Weight: 3.1 grams/ pair * Hypoallergenic jewelry - Nickel Free * Water resistant * Rigorously manufactured under CA Prop 65 and EU standards * Made in Brazil forever in perfect condition. GOLDFI 18K GOLD FILLED Gold filled jewelry is an excellent option for those who wish to have a product of exceptional quality, beautiful and anti-allergenic, but with prices far lower than solid gold jewelry. Our products are free of harmful chemicals such as nickel, cadmium or lead. We produce our jewelry according to the standards of quality using fine 18k pure gold, thus ensuring the quality of the gold filled jewelry.