This is an authentic, pre-loved Chopard piece. It's possible that there may be some gentle wear. 18-karat yellow gold Faceted Round-cut Prong-set Diamond; color = F-G; clarity = VS1 Approximately 7.25in long Hidden Box Clasp closure It is customary to treat most gemstones to achieve enhanced color and durability. Some of these treatments may not be permanent, and may require special care.