Metal: 10K white or yellow gold; 14K rose, white or yellow gold; 24K yellow or rose gold over silver Closure: Spring-ring Pendant Size: 12x11mm Personalization: Up to 8 characters, choose your birthstone Choose a birthstone. Use the letter key below to represent the months: A=January B=February C=March D=April E=May F=June G=July H=August I=September J=October K=November L=December Features: Personalized Metal Color: White Chain Length: 18 Inch Chain Width: 1.25 Millimeters Chain Construction: Rope Metal: Sterling Silver Necklace Type: Pendant Necklaces Assembled in the US from Imported Materials ALL SALES FINAL Metal may be rhodium plated to enhance appearance and reduce tarnishing. Photos are enlarged to show detail.