14k Yellow Gold Simulated Opal Earrings - October Birthstone - in 14k Yellow Gold - Product Attributes: - Bezel - Leverback - Opal - Polished - Width of Item: 4 mm - Length of Item: 23 mm - Earring Closure: Leverback - Earring Type: Birthstone Bezel ; Genuine ; Leverback ; Pear ; Polished - 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: opal ] - Occasionally treated to enhance the color. Sometimes infused with wax, oil or plastic to enhance appearance and durability. ::: [ Care and Handling: opal ] - Do not use ultrasonic cleaner or steamer. Avoid heat and contact with cosmetics, hair spray, perfume and household chemicals. Clean with a damp cloth or soft brush. :::