Each as a seven-petal mystery-set sapphire blossom, centering upon a brilliant-cut diamond pistil, 2.8 cm, with French assay marks for platinum and gold, in grey suede Van Cleef & Arpels pouch. Signed and with maker's mark for Van Cleef & Arpels, no. 79136.

Lot 27. The property of Mrs Vera Espirito Santo. A mystery-set sapphire and diamond flower brooch, by Van Cleef & Arpels. Estimate CHF 70,000 - CHF 100,000. Price realised CHF 118,750. © Christie's Images Ltd 2013.

The seven mystery-set sapphire petals centering upon a brilliant-cut diamond pistil, to the baguette and brilliant-cut diamond stem and leaves, 4.3 cm, with French assay marks for platinum and gold, in dark blue suede Van Cleef & Arpels pouch. Signed Van Cleef & Arpels, no. 80028.

Christie's. Magnificent Jewels, Geneva, 12 November 2013.