Gold and malachite set An 18K (750) yellow gold bracelet composed of nine elements adorned with rectangular malachite cabochons linked together by small yellow gold links. hallmark: none weight: 38.70 g inside diameter: approx. 7 cm An 18K (750) yellow gold bar link choker dangling from seven oval malachite cabochons of different sizes. hallmark: faded weight: 22.9 g length: 42 cm. weight: 61.6 g