A smoky quartz and diamond necklace, mid 20th century, the pendant set with a circular-cut smoky
A smoky quartz and diamond necklace, mid 20th century, the pendant set with a circular-cut smoky quartz within a border of rose-cut diamonds in alternating square and circular collets, to a chain with two foliate motifs set with rose-cut diamonds, mounted in white gold and palladium, pendant 3.1cm, 43cm