Authentic. Christian Dior CD logo pendant necklace in GUC. 24k plated yellow gold (vintage logo). Very shiny. No missing crystals. Stamped twice - behind charm logo and extender logo. Minor plating loss on charm reverse side (not noticeable). Great layering piece and stylish on its own. Product details: necklace length: 16 inches + 2 inch extender Necklace Type: Italian rope chain necklace material: 24k gold plated pendant measurements: 16 x 14mm lobster clasp closure