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  1. This short video explains the GIA clarity scale and how GIA classifies diamonds with a clarity grade ranging from Flawless to I 3 by using a 10X magnification loupe and a microscope to see and plot the diamond’s inclusions.

    • 4Cs BLOG

      GIA Diamond Grading Scales: The Universal Measure of ...

    • Diamond Origin Report

      The GIA Diamond Origin Report is a full assessment of a ...

    • What Are Diamond Treatments

      At the turn of the 20th century, scientists began ...

    • 日本語

      この短いビデオでは、GIAのクラリティスケールと、フローレ ...

  2. 鑽石入門: 「4C」- Clarity (淨度) – 安東尼里 ANTONELLI. 大家又想不想像得到鑽石出現在首飾店前,閃爍得五光十色的它其實是源自於地球深處地幔的岩漿之中, 在一個環境複雜、成份多樣、溫度及壓力都極高的環境下「成長」。 再經歷過億萬年的地質變化,鑽石內部少不免含有各種不同的雜質或存在瑕疵,這些內含物的顏色、多少、大小和位置分佈都會對鑽石淨度構成不同程度的影響。 鑽石的淨度是指鑽石內外瑕疵的程度,最常見的包括晶體 (Crystal)、羽裂紋 (Feather) 和雲狀物 (Cloud) 等等內部同外部瑕疵。 若要判斷鑽石內部的乾淨程度,寶石學家通常會使用10倍放大鏡對鑽石內部、表面瑕疵及其對光彩的影響程度進行分級,經由GIA 評測的鑽石淨度可分為11級:

  3. 認識4C 何謂4C? 即是Color (顏色)、Clarity (淨度)、Cut (切磨)、Carat (克拉)。 認識市場公認的評鑑準則,有助於挑選裡想中的鑽石。 而加入【BID】的法則,更能讓預算達到最好的利用。 克拉 Carat 顏色 Color 淨度 Clarity 切磨 Cut 4C之淨度 (Clarity)

  4. Today, the 4Cs of Diamond Quality is the universal method for assessing the quality of any diamond, anywhere in the world. As the creator of the Diamond 4Cs and the International Diamond Grading System™, GIA is trusted by museums, auctions houses, and consumers all over the world to grade nature’s finest treasures.

    • What Are The 4 C’s of Diamonds?
    • The Characteristics of Diamonds
    • How to Buy An Engagement Ring Using The 4 C’s
    • Cut
    • Color
    • Clarity
    • Carat Weight
    • How The 4 C’s Work Together
    • Need More Help on The 4 C’s?

    These four qualities of a diamond are the key components that impact its beauty and structure. The 4C’s interact with each other within the diamond. They dictate how the diamond appears and how high quality it is. As an example, the diamond’s ability to reflect light back to your eyes depends primarily on cut quality but also on color and clarity. ...

    The GIA is a prominent institutionwith a sophisticated grading system for evaluating diamond characteristics. It is the most consistent entity and the one we recommend gaining a diamond certificate from. Each of the C’s is graded on a scale and can be evaluated for quality. Though some universal terminology and standard grading exist, it does vary ...

    There are two major questions you need to answer; Where and what. We have an article covering where to buy your engagement ring. In this article, we are covering what characteristics you should focus on when purchasing a diamond. Without finding the right balance between the 4cs, you will end up overpaying for certain qualities of a diamond while n...

    The ‘Cut’ is perhaps the most important aspect of a diamond quality that impacts a diamond’s beauty. Diamond cut specifically refers to the quality of a diamond’s angles, proportions, symmetrical facets, brilliance, fire, scintillation and finishing details. These factors directly impact a diamond’s ability to sparkle, along with its overall aesthe...

    Diamond color is graded in terms of how white or colorless a diamond is. The GIA grades diamonds from D to Z, with D being the most colorless, and Z containing noticeable brown or yellow tint. The diamond color chart below shows how each grade looks next to each other. While the diamond color chart provides an example of how each grade appears, it’...

    A diamond’s clarity grade evaluates how clean a diamond is from both inclusions and blemishes. Clarity is graded by the GIA on the following diamond clarity chart: 1. FL (Flawless) 2. IF (Internally Flawless) 3. VVS1 (Very, Very Slightly Included 1) 4. VVS2 (Very, Very Slightly Included 2) 5. VS1 (Very Slightly Included 1) 6. VS2 (Very Slightly Inc...

    Often when people hear the term “carat weight,” they think it refers to the size of the diamond. In actuality, Carat refers to the weight of the diamond, not how large the stone is. A 1 carat diamond equals 200 milligrams, or 0.2 grams—and weighs about the same as a quarter of a raisin. Depending on the diamond shapeand how it is cut, two 1 carat d...

    Each of the 4 C’s contribute to the overall beauty of a diamond and make each stone unique. A diamond, however, should be viewed as an organic whole. Because the eye has difficulty differentiating one diamond characteristicby itself, such as clarity or color, it is important to consider how the 4 C’s impact each other.

    Even with a basic understanding of the 4 C’s as a guide, navigating the diamond industry can be difficult. From picking which of the 4 C’s to prioritize, to assessing whether a diamond actually lives up to the grades it’s been given, there’s a lot to take in. The recommendations related to cut, color, clarity and carat weight in this guide should g...

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  6. Diamond 鑽石4c 分級 - Clarity - 瑕疵淨度分級. 鑽石4C分級, Clarity - 鑽石是在地球自然界裡自然生長的礦物,由於鑽石在生長過程中極為複雜,鑽石不含雜質幾乎是不可能的。. 淨度分級需要受過訓練和十倍放大鏡的觀察,一般人只可看出“SI1” 或 “SI2”有少少瑕疵 ...

  7. 鑽石4C - 淨度 – Diamond Culture. 甚麼是鑽石淨度? 淨度是指鑽石的純淨度,是主要的評級項目之一。 鑽石的內含物和表面特徵就像是鑽石的“胎記”,化驗所會按這些“胎記”的本質、數量、大小、位置和明顯度來判斷鑽石品質。 內含物和表面特徵越少,淨度便越高,而價值亦越高。 鑽石淨度等級. 鑽石的淨度共分為六個級別︰Flawless (FL/無瑕 級 )、Internally Flawless (IF/內無瑕 級 )、Very Very Slightly Included (VVS/極輕微內含 級 )、Very Slightly Included (VS/輕微內含 級 )、Slightly Included (SI/微內含 級) 和 Included (I/內含 級 )。

  1. diamond 4c clarity 相關

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