This necklace was made using bright shiny 18k gold plated embossed chain with 18k gold plated connecting rings and a 16k gold plated clasp. It also has an extender making it adjustable from 16" to 18" in length. The choker features a 12mm round natural white Mother of Pearl shell. Timeless elegance. * Your purchase will arrive in pretty packaging TO KEEP PEARLS LUSTROUS: - Apply cosmetics and perfume before putting them on. - Clean them gently with mild soap and warm water, avoiding ultrasonic cleaners and harsh chemicals. CLEANING AND MAINTENANCE: - Wipe After Wear: Gently wipe pearls with a soft, dry or damp cloth to remove oils, sweat, or perfumes. - Occasional Cleaning: Use mild soap (like Ivory) and warm water to clean them, then dry thoroughly. WHAT TO AVOID: - Never use ultrasonic cleaners, steamers, detergents, baking soda, ammonia, or abrasive pads.