
鑽石4C於1953年發明,即是重量(Carat Weight)、淨度(Clarity)、成色(Color)及切工(Cut)等4個要素評定鑽石等級,此鑽石等級分級系統有效的分別鑽石等級評定。直至今日這個4C鑽石等級分級系統已成為全球珠寶市場中業者及消費者的共通語言。這個鑽石等級分級系統也因GIA美國寶石學院鑑定中心嚴格執行,使得GIA的鑽石鑑定證書成為全世界鑽石交易的標準。
延伸閱讀:
●鑽石分級基礎 - 4C中的重量(Carat Weight)
●鑽石分級基礎 - 4C中的切工(Cut)
●鑽石分級基礎 - 4C中的淨度(Clarity)
●鑽石分級基礎 - 4C中的成色(Color)
轉載自《GIA 4C官方網站》
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