Lot 352. Natural pearl and diamond necklace. Estimate 30,000 — 50,000 GPB. Photo: Sotheby's.

Suspending three natural pearls with trapeze-, bullet- and shield-shaped diamonds, to a fine link seed pearl and briolette diamond chain, length approximately 440mm.

Accompanied by The Gem & Pearl Laboratory report no. 11744, stating that the drop pearl and grey button pearl were found to be natural, saltwater, no evidence of treatment, and the white button pearl was found to be natural, freshwater.

Sotheby's. Fine Jewels, London, 15 Mar 2016, 10:00 AM