What's the diamond 4C?
Hello.
April birthstone. That's a well -known diamond.
The jewelry shop shines in a shine, and the jewelry that longs for women is a diamond. But, "Why is it a similar size but there is an unusual price? I guess some people have questioned.
Therefore, this time, I will introduce Diamond 4C.
4cWhat is
As a criterion for evaluating diamond quality1950In the ageG.I.A (American Jewelry Society)"4c"The quality evaluation criteria" are internationally used.
4cIs a standard for expressing the quality of diamonds.
・ CARAT (Carat = weight)
・ CUT (Cut = shine)
・ COLOR (Color = color)
・ Clarity (Clarity = Transparency)
this4A term that represents some elements.
Therefore, combine each head character.4cIs called.
this4cThe combination of the diamond determines the quality and value of the diamond.
Carat: Carat -Weight ~
When you buy a diamond product, you will see that it is listed as "XX Carat Diamond". Of course, the larger the number, the larger the diamond of the grain, but the strictly, the number of carats is a unit that indicates weight, not the size.1CT(Carat) is0.2g。 The heavier it is, the higher the value and the higher the value. However, the value of diamonds is comprehensively evaluated, along with cuts, colors and clarity quality.
| carat | 2.0ct | 1.0ct | 0.7ct | 0.5ct | 0.3ct | 0.1ct |
| weight | 0.4g | 0.2g | 0.14g | 0.1g | 0.06g | 0.02g |
| diameter | Approximately 8.1mm | About 6.0mm | About 5.5mm | About 5.0mm | Approximately 4.0mm | About 3.0mm |
CUT: Cut -shine ~
Cut (proportion) is very important for diamonds.
Diamond58The cut on the surface is called a round brand cut. Round brinkt cut is said to be an ideal cut that brings out the shine of diamonds.
Diamonds were calculated precisely and were cut without any disturbing dimensions.Excellent(Excellent) "bears the highest rating.
"Below it"VERY GOOD」「Good」「Fair」「POOR"Continue.
For cuts, it is possible to make a rough consideration by using a loupe or a diamond from the side to check the balance, but it will be very difficult to judge with the naked eye.
Color: Color -Color ~
Diamonds are basically worth more colorless.
The highest rank is ""D"Color diamond", as the yellow color increases,G・H・I･ ･ ･ ･ ･ The rank goes down,ZAt the same time, it becomes yellow that can be clearly seen with the naked eye.
Clarity: Clarity -Transparency-
It is evaluated by looking at the quantity, position and quality of the incident (inclusion) and scratches contained in the diamond.
Inclusion refers to the impurities mixed with diamonds and the cracks of ore when they are formed in the ground, and the size, position, and degree of numbers are rated based on a certain standard.
Internal drawback
Very small incident
A slight inclusion
Properous inclusion
How was it?
In this way, even the same size changes greatly in color, cut, and clarity.
Even if the carat is large, the lower the cut or the clarity, the lower the total value, and vice versa. Please refer to it when purchasing.
Also, if you want to know how much your diamonds can sell, we also have a free purchase assessment. Please feel free to contact us. We'll be expecting you.
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