A lady's diamond 'aura' bracelet-watch, by Piaget. Photo Christie's Image Ltd 2014

The oval-shaped dial, bezel and Piaget band bracelet entirely set with baguette and fancy-cut diamonds, reverse secured with four screws, mechanical movement, concealed clasp, 1990s, inner circumference 16.0 cm, with French and Swiss assay marks for gold. Signed Piaget, nos. 504748 and 40011. Estimate CHF140,000 – CHF220,000 ($159,515 - $250,667)

Christie's. GENEVA MAGNIFICENT JEWELS. 14 May 2014, Geneva -http://www.christies.com/