White gold brooch, in the shape of a color palette,... Lot n° 25

18K gold, 7 x 3 cm, 1 European cut diamond, F-G color, VS1 clarity, approx. 0.46 ct.; 1 oval cabochon onyx, black color, approx. 0.36 ct.; 1 oval cabochon emerald, green color, heavily included clarity, approx. 0.81 ct.; 1 round faceted garnet, red color, eye-clean clarity, approx. 0.31 ct.; 1 oval cabochon sapphire, blue color, moderately included clarity, approx. 0.60 ct.; 1 round cabochon amethyst, violet color, eye-clean clarity, approx. 0.36 ct.; 1 round cabochon tourmaline, pink color, SI clarity, approx. 0.76 ct.; 2 citrines (1 round faceted and 1 round cabochon), yellow color, eye-clean clarity, approx. 0.76 ct., 25,88 g