Antique 18kt rose gold grisaille enamel portrait brooch depicting a lady’s profile, finely accented with 45 rose-cut diamonds weighing approximately 0.20 carats in total. Brooch diameter: 1.00 inch. Total weight: 9.8 grams. Grisaille enamel (from the French word gris, meaning "grey" or "greyness") is a sophisticated, monochromatic enameling technique that produces a dramatic, three-dimensional effect of light and shadow, similar to a sculpture or relief carving. good vintage conditions. All our diamonds and colored gemstones are naturally earth-mined. Any synthetic (lab-grown) stones will be clearly indicated in the description. Upon Request, Auction House may provide an appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.