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中 文
ENGLISH

The 4Cs of Diamond

This basic knowledge will not only unlock the mystery of a diamond's quality, It will help you understand a diamond's value and price.

Diamond Color In most diamonds, the term actually refers to the absence of color. The less color in the stone, the more desirable and valuable it is. Some of these differences are not visible to the naked eye, but directly impact the overall quality and price of the stone.

Diamond Clarity measures the amount, size and placement of internal 'inclusions,' and external 'blemishes.' Grades run from 'Flawless,' with virtually no imperfections, to 'Included,' which contain a significant number of imperfections.

Diamond Cut does not refer to a diamond's shape, but to the proportion and arrangement of its facets and the quality of workmanship. The amount of brilliance, sparkle and fire in a diamond is determined by cut. Grades range from 'Excellent' to 'Poor.'

Diamond Carat refers to a diamond's weight. Generally speaking, the higher the carat weight, the more expensive the stone. Two diamonds of equal carat weight, however, can have very different quality and price when the other three Cs are considered.
No matter how beautiful a diamond may look you simply cannot see its true quality. The 4Cs of diamond quality will provide you with the information you need to know the diamond's actual quality.

GIA - Gemological Institute of America

GIA is the largest, most respected nonprofit institute dedicated to research and education in the field of gemology and the jewellry arts in the earth. GIA exists to protect all purchasers of gemstones, by providing the education, laboratory services, research, and instruments needed to accurately and objectively determine gemstone quality. GIA established the “4Cs” and the International Diamond Grading System™– to this day, the worldwide standard for evaluating diamond quality. 
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  • 中文 首頁
    • English home
  • 關於我們 ABOUT US
    • 聯絡方式 Contact
    • 公司簡介 Our Company
    • 顧客權益Protection for our customers
    • 最新動向 Latest News
    • 顧客心聲 CUSTOMER COMMENT
    • 購買流程 Purchase Process
  • 產品 PRODUCT
    • 結婚對戒Marriage Ring
    • 鑽石戒指 DIAMOND RING
    • 星座吊墜 Constellation Pendant
    • 鑽石吊墜 DIAMOND PENDANT
    • 鑽石耳環 Diamond Earrings
    • 精選鑽石戒指Featured Diamond Ring
    • 鑽戒留影 RING GALLERY >
      • 0.30ct至0.39ct Part A
      • 0.30ct至0.39ct Part B
      • 0.40ct至0.49ct Part A
      • 0.40ct至0.49ct Part B
      • 0.50ct至0.69ct Part A
      • 0.50ct至0.69ct Part B
      • 0.70ct至0.89ct Part A
      • 0.70ct至0.89ct Part B
      • 1.00ct至1.49ct Part A
      • 1.00ct至1.49ct Part B
      • 1.50ct → MORE
  • 買鑽小貼士Diamond buying Tips
    • 買GIA鑽石之武林秘笈
    • GIA DIAMOND BUYING TIP
    • GIA鑽石階梯價錢 GIA DIAMOND LADDER PRICE
    • 何謂奶油鑽咖啡鑽 What is ( BMG ) Diamond
    • 3 EXCELLENT NONE鑽石的重要性
    • Importance OF 3 EXCELLENT CUTTING NONE DIAMOND
    • 鑽石基本保養及清潔方法
    • How to Care & Cleaning Method your Diamond
    • 鑽石成色 COLOR OF DIAMOND
    • 鑽石淨度 CLARITY OF DIAMOND
    • 鑽石切工 DIAMOND CUT
    • 鑽石克拉 CARAT OF DIAMOND
  • 網上商店ONLINE STORE
    • 免責聲明及條款
    • 付款方式
    • 吊墜
    • 精選鑽石耳環及戒指
    • GIA鑽石