A diamond and Ceylon sapphire necklace, property of an unnamed lady, is displayed by Sotheby’s ahead of its auction in Geneva, June 2020; the necklace, which has a center element that can be detached and worn as a brooch, sold for about $165,000

A diamond festoon and fringe necklace, featuring brilliant, marquise, and baguette-cut stones, is displayed by Sotheby’s ahead of its sale in Geneva, June 2020; the necklace, made in the 1950s and very typical of its era, sold for around $75,000

A diamond and Burmese ruby ribbon and festoon necklace, belonging to an unnamed noble family, is displayed ahead of its sale at Sotheby’s in Geneva, June 2020; the necklace, which dates to 1910, sold for around $75,000