Rare Van Cleef & Arpels Floral Brooch Features Cabochon Cut Mother of Pearl Leaves and an Aquamarine Flower Enhanced with Blue Sapphires and approximately 1.35 Carat Total Weight of Round Brilliant Diamonds. A 0.15 carat marquise cut diamond adds a charming touch to the base of the stem. This piece measures approximately 2 inches long and 2 inches wide, weighing 28.4 grams.