Attributed to Pierre CONROUX (1923-2003) Lot of two gouache drawings on tracing paper comprising : - a yellow gold ring centered on a large emerald cabochon in a setting of calibrated rubies alternating with diamonds. - a white gold or platinum daisy-type ring centered on a faceted oval ruby in a claw-set setting of brilliant-cut diamonds. Circa 1950-60. Dimensions: 12.8 x 11.8 cm and 14.1 x 11.5 cm. Folds, annotations and tears.