A fine pair of conch pearl and diamond earrings. Photo Bonhams

Each set with an oval pink conch pearl, measuring approximately 11.7 x 9.1 mm or 11.4 x 8.7mm, within a pear and brilliant-cut diamond surround, mounted in platinum, earring length 2.1cm. Sold for HK$ 132,000 (€12,764)

Accompanied by a report from GIA, stating that the saltwater conch pearls are natural, with no indications of treatment. Report number 2125496318, dated 13th August 2010.

Bonhams. Bloch Collection; Wine and Whisky; Chinese Ceramics, Works of Art & Paintings; Jewellery, Jadeite and Wristwatches and Writing Instruments Hong Kong, JW Marriott Hotel, 24 Nov 2010