Michele Della Valle, Buccellati ruby jewelry @ Christie's. Jewels: The Geneva Sale. 12 May 2010. Geneva

A ruby and diamond geranium brooch, by Michele Della Valle. photo Christie's Ltd 2010

The flowerheads and buds pavé-set with rubies, to the pavé-set diamond stem and leaf, mounted in 18k white gold and titanium, 14.0 cm high, in a fitted white leather Michele della Valle case. Signed Michele della Valle, no. 090725. Est. CHF40,000 - CHF60,000. ($36,098 - $54,146) Unsold.

A ruby and diamond bracelet, by Buccellati. photo Christie's Ltd 2010

Designed as a textured gold hinged cuff, the top set with square-cut rubies, each within a circular-cut diamond foliate openwork surround, mounted in 18k white and yellow gold, 16.7 cm inner circumference. Signed M. Buccellati. Est. CHF38,000 - CHF58,000 ($34,293 - $52,341) Unsold.

A pair of ruby and diamond ear pendants. photo Christie's Ltd 2010

Each designed as a drop-shaped cabochon ruby suspended from a line of marquise-shaped and brilliant-cut diamond clusters, 4.6 cm high. Est. CHF6,000 - CHF8,000 ($5,415 - $7,220) Price Realized CHF18,750 ($16,921)

A ruby and diamond bangle, by Michele Della Valle. photo Christie's Ltd 2010

The wooden bangle set with vari-cut rubies and diamonds, mounted in 18k white gold, 15.0 cm inner circumference. Signed and with maker's mark for Michele della Valle. Est. CHF5,000 - CHF7,000 ($4,512 - $6,317) Price Realized CHF10,000 ($9,024)

Notes: Christie's Geneva, 17 May 2006, lot 56, sold for Sfr 32'400

Christie's. Jewels: The Geneva Sale. 12 May 2010. Geneva - Four Seasons Hotel des Bergues www.christies.com