VAN CLEEF & ARPELS Coral, chrysoprase and diamond necklace/bracelet combination, 'Zip' CHF260,000–470,000

VAN CLEEF & ARPELS Sapphire, coloured sapphire, garnet and diamond necklace, 'Les Jardins' CHF95,000–190,000

CARTIER Gold, enamel, diamond and sapphire vanity case CHF6,500-9,000

BULGARI Coloured sapphire, rock crystal and diamond demi-parure CHF95,000–140,000

Emerald ring weighing 14.69 carats, Colombia, no indications of clarity enhancement CHF230,000–270,000

CHAUMET Ruby and diamond ring CHF95,000–140,000