14k 5mm Synthetic Sapphire (Sep) Earrings - Measures 5x5mm - in 14k Yellow Gold - Product Attributes: - Polished - Post Earrings - Synthetic - Width of Item: 5 mm - Length of Item: 5 mm - Earring Closure: Post & Push Back - Earring Type: Birthstone - Finish: Polished - Feature: Solid - Feature 2: Nickel Free Polished ; Post Earrings ; Synthetic - All of our jewelry for women and men are authenticated with a 10K or 14K hallmark and are tested to pass FTC regulations. ::: [ Potential Enhancement Methods: sapphire ] - Usually heated to improve appearance. Occasionally irradiated. Commonly diffused along with heat application to create different colors. Yellow sapphire is always diffused. ::: [ Care and Handling: sapphire ] - Avoid strong detergents, heat, pressure and ultrasonic cleaner or steamer. Avoid re-polishing or re-cutting of the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth. :::