Bonhams will offer the radiant-cut, fancy-intense-yellow, VS1 clarity stone set between shield-cut diamond shoulders at its London Jewels auction on 7 December, it was announced on Tuesday.
Two other yellow diamonds up for sale include a 10.02 carat brilliant-cut fancy yellow diamond single-stone ring and an 8.45 carat step-cut fancy yellow diamond ring accented by four pear-shaped diamonds set between baguette and step-cut diamond shoulders. Both pieces carry estimates of GBP 50,000 to GBP 70,000 (approximately $62,300 to $87,200).
The 149-lot sale will also feature pieces from several private collections dating from 1870 to the present day. These include jewels from Cartier, Bulgari, Graff, Moussaieff, Van Cleef & Arpels, Harry Winston, Boucheron, Tiffany & Co, David Webb and Grima.
Highlights from a single European private collection include a Lalique Art Nouveau enamel, pâte-de-verre, sapphire and diamond pendant, circa 1905-1915; a Cartier Panthère coral, emerald, onyx and diamond brooch, circa 1968; and a Cartier ruby and diamond clip and ear clip suite brooch combination, circa 1960.
Another collection, from a descendant of Dorothy Maud, Countess Haig, includes a pearl and diamond tiara necklace presented to the Countess by Queen Alexandra in 1905 on the occasion of her marriage to General Haig.
