On Mom's special day, surprise and delight her with this charming personalized birthstone necklace. Created in your choice of metal This design features the three to five dainty gemstones you select - each representing someone dearest to Mom - glistening in a row along a polished cascading ribbon. This style suspends centered along an 18.0-inch cable chain, adjustable to 16.0 and 17.0 inches, that secures with a spring-ring clasp.