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1、眾所周知,18K金是以75%的黃金再加上25%的其他"雜質金屬"熔煉而成的.由于25%的雜質金屬的種類和相互之間的配比不同,就可煉制出不同顏色的18K金. "玫瑰金",就是帶有玫瑰色的18K金.現將18K金的顏色和雜質金屬列舉如下,以供參考. 18K金的顏色 黃 含雜質金屬 銀,銅. " " " " 粉紅 " " " " " 銀,銅. " " " "玫瑰紅" " " " " 銅. " " " " 紅 " " " " "鋁. " " " " 白 " " " " " "銀,鋅,鎳. " " " " 綠 " " " " 銀,鎘,銅. " " " "深綠 " " " " 銀,鎘,銅. " " " " 藍 " " " " 鐵. " " " " 褐 " " " " 鈀,銀. " " " " 灰 " " " " 銅,銀. 18K金飾品,本來只含75%的黃金,理應價格比足金(含金量為99%)和千足金(含金量為99.9%)便宜,可是因為加工工藝復雜,其單價常比足金和千足金的飾品還高. 一般說來,18K金的飾品是以"件"來銷售的,如這條(18K金)項鏈XXX錢,那條是XXX錢,等等.在交易過程中并不是稱重量再乘以單價來計算的. 18K金飾品,一般來說升值空間不大.。

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