1.辨色泽。黄金首饰的颜色因含杂质的种类和含量而别,可根据“七成青、八成黄,九五成赤”的口诀,看出大概成色,纯金光润闪灿,混金则有麻涩小点。2.掂轻重。黄金的比重为19.3仅次于铂而高于其它金属,掂于手中有沉坠感。3.查折性。将金饰品用手折之,很软的是高清金,低及混者则不软,小件饰金可用双手弯折, 1. Identify color. The color of gold jewelry due to the type and content of impurities do not, according to “Qi Cheng Qing, Bacheng yellow, ninety-five Cheng Chi,” formulas, see about fineness, pure gold shining bright, mixed gold is astringent small point. 2. 掂 light and heavy The proportion of gold is 19.3 second only to platinum and higher than other metals, 掂 in the hands of a sense of sinking. 3. Check the fold. Gold jewelry hand folded, very soft high-definition gold, low and mixed are not soft, small pieces of gold can be bent with both hands,