Metal: Silver, 10K white or yellow gold, 14K white or yellow gold Stones: Simulated gemstones Closure: Spring-ring Dimensions: 18" long cable chain Pendant Size: 21x21mm Personalization: Choose up to 4 stones Choose up to four birthstones. Use the letter key below to represent the months. Selection must be made using capitalized letters: A=January B=February C=March D=April E=May F=June G=July H=August I=September J=October K=November L=December ALL SALES FINAL Metal may be rhodium plated to enhance appearance and reduce tarnishing. Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.