18ct white gold, South Sea pearl and diamond necklace designed as five rows of cultured pearls measuring 6 to 6.50 mm, to a large open work navette-shaped clasp applied with trailing foliage motifs set with marquise-shaped and brilliant-cut diamonds, interlaced with ribbons of baguette diamonds, the diamonds together weighing approximately 12.71 carats, inner circumference approximately 86 cm.