Lot 129. An Art Deco Diamond Brooch, by Van Cleef & Arpels, Circa 1934. Estimate £ 45,000 - 55,000 ( € 50,000 - 61,000 ) . Sold for £ 87,500 (€ 98,613). © Bonhams 2001-2018 Of openwork geometric design, set throughout with vari-cut diamonds, including...

Lot 446. Citrine bangle, 'Tranche', René Boivin, circa 1934. Estimate 30,000 — 49,000 CHF. Lot Sold 187,500 CHF . Photo Sotheby's Of geometric design decorated with graduated lines of calibré-cut citrines of various hues, inner circumference approximately...