Genuine 18K Gold, hardness and cutting are better than 14K, 10K and other metals. Highly polished and won't get dark, push-on posts back setting; Nickel-free, Lead-free, Cadmium-free and Hypoallergenic. Gemstone - Yellow Natural Round Diamond Stud Earrings 0.10Cttw, Size: 2.30mm, each stone 0.05ct, Minimum Clarity: SI2; Color: F-G (colorless). Beautiful classic Round-cut solitaire studs featuring diamonds nestled in four-prong settings and screw-on backings, Jewelry gift box included. All our diamond are 100% Natural and conflict free diamonds. SISGEM brand has been registered and certified by Amazon. 30-day 100% Easy Returns with no question asked, If encounter any concerns. Please feel free to contact us, and You are mostly welcome. #7,460,020 in Clothing, Shoes & Jewelry ( ) #8,929 in #37,830 in