A natural pearl, sapphire and diamond necklace, early 20th century, designed as a single strand of

A natural pearl, sapphire and diamond necklace, early 20th century, designed as a single strand of natural pearls, to a clasp set with a cabochon sapphire, rose- and circular-cut diamonds, mounted in gold and platinum, length 43.5cm

Accompanied by GIA report number 2185290326, dated 14th April 2017, stating that the 59 pearls ranging from 4.75mm to 9.21 x 8.90mm diameter are natural, salwater