Platinum, yellow diamond, diamond, emerald, sapphire and enamel brooch/pendant, circa 1930, of giardinetto design, set throughout with old brilliant-cut and baguette diamonds, highlighted with carved emerald and sapphire leaves and black enamel accents, the vase centring a collet-set old brilliant-cut yellow diamond weighing approximately 1.00 carat, approximately 39 x 37 mm. Please note that the diamond of yellow tint has not been tested for natural colour origin.