Vintage Garnet 9k Gold Lizard Brooch - 3.9 Grams . The style and design is just wonderful. It weighs 3.9 grams. It is fully hallmarked with the London assay mark, crown, 375, the makers mark and date letter "Q" for 1990, it is also marked with the crown and 375 on the pin. It measures approx 4.4 cm across. It is in really excellent condition and comes in the luxury case pictured.