These necklaces are made using delicate gold 925 sterling silver, or 925 sterling silver chain that have extenders making them adjustable from 20" to 22" in length. Each has a teardrop crystal at the end of the extenders and the clasps are either silver plated of 16k gold plated. Each necklace features a 12mm round genuine white Mother of Pearl pendant with either a 925 sterling silver or gold 925 sterling silver bail and pin. They are the epitome of sophistication and elegance. * Your purchase will arrive in pretty packaging CARING INSTRUCTIONS FOR PEARLS: - Routine Care: Gently wipe pearls with a clean, soft cloth (microfiber or flannel) after each wear to remove sweat, perfumes, or skin oils. - Occasional Cleaning: Use warm, soapy water with a mild, unscented detergent to gently clean pearls. Do not use toothbrushes or abrasive materials. - Avoid Machines: Never use ultrasonic cleaners or steam cleaners.