Rest assured knowing that all earrings are stamped with "10k" as a symbol of authenticity and a promise of exceptional quality. Gemstone is Heat Treated to enhance color. 2 Gemstones Lever back closure Polished finish Prong setting Imported Belk Exclusive Product Specifications 1 in x 0.3 in x 1 in 4.1 ct. t.w. Blue Topaz Material & Care 10K Yellow Gold Requires specialty care