This 018-gauge heart-shaped Simulated Diamond Cubic Zirconia (CZ) halo cartilage piercing/flat back earring is fashioned in 14K White Gold. Includes a flower internally threaded backing in a matching color of 14K White Gold. It measures 6mm in length and 5mm in width HYPOALLERGENIC: Safe for people with sensitive skin. Our fine jewelry is manufactured with authentic metals and solid stamped 10K/14K Gold, 1/20 14K GF or 925 Sterling Silver. THE PERFECT GIFT: Whether it's a birthday, holiday, a special occasion, or just because, jewelry is always the perfect gift. Crafted in 14K White Gold, this heart-shaped beautiful cartilage is accented with a single shimmering heart-shape Simulated Diamond Cubic Zirconia (CZ) wrapped in a halo of smaller round-shaped white CZ. It measures 6mm in length and 5mm in width. Includes a flower internally threaded backing in a matching color of 14K White Gold. The 18 gauge cartilage piercing/flat back earring has a length of 8mm and fits a thin helix or upper cartilage, the ear head or forward helix, and an average ear lobe. We use high quality Cubic Zirconia Simulated Diamonds in our jewelry. Cubic Zirconia, or CZ, is a stone so optically close to Diamond that most jewelers cannot tell the difference between a CZ and a Diamond with the naked eye. It resembles the same optical characteristics, radiance and beauty as Diamonds. CZ is much less expensive than Diamond, optically flawless, and can be created in a variety of different colors. The biggest difference is that CZ is 70% heavier than Diamond. CZ is extremely durable with a hardness rating of 8.5 compared to 10 for Diamond. This body jewelry comes with a 14K stamp guaranteeing its authenticity. 14K Gold is nickel-free and hypoallergenic making this body jewelry safe and comfortable for people with sensitive skin. Jewelry Care: Over the course of time, body oil and skin products can collect on jewelry and leave a residue which can cause the metal and brilliance of stones to dull. To keep your jewelry looking bright and new, take a soft headed toothbrush with some mild soap and gently brush the front and back of the stones and metal. Rinse thoroughly with tepid water. Steam cleaning works well, but do not steam emeralds or opals as high heat can damage these stones. AVORA fine jewelry is delicate in nature and should be handled carefully as outlined in the care instructions.