Pendant Size: 24.7x21.6mm Personalization: Select 3 birthstones, with 3 engravings of up to 13 characters each. Choose three 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 Gemstones may be treated and may require special care. Jewelry photos are enlarged to show detail. Features: Personalized, Family Jewelry, Quick Ship Link Construction: Solid Stone Cut: Round Metal Color: White Chain Length: 18 Inch Chain Width: .65 Millimeters Chain Construction: Rope Authenticity: Simulated Stone Metal: 10k Gold 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. Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.