What you want to say is the proportion of cutting work, that is, the angle of the tangent plane. If it is a perfect angle, it can perfectly radiate the fire color of the diamond and make the diamond very beautiful and shiny. On the contrary, the fire color will be weaker.
You are not a professional, so I suggest you choose GIA certificate or national inspection certificate when choosing diamond cutting, which means that the three diamonds cut by EX (perfect cutting) will be more expensive, but the fire color will be beautiful.
In addition, it is recommended to choose diamonds above H color, which will not show yellow.
I hope you can choose your favorite diamond.
The following are Baidu's notes on cutting:
cut
Cutting refers to the angle at which the technician cuts the valve surface and the proportion of each part of the diamond after cutting. According to the scientific equation, the perfect cut diamond should reflect the light entering the diamond through different petals, and finally condense on the top of the diamond to shine brilliantly. If the diamond is cut too deep or too shallow, the light will flow away from the bottom or side and lose its luster. Therefore, the value of diamonds with appropriate cutting ratio is naturally higher.
The brilliance of diamond is attributed to its unique high refractive index and high dispersion.
However, uncut diamonds are never ordinary. Only through accurate calculation, careful design and perfect cutting and polishing can the light be fully analyzed and emitted from the top surface, so that the beautiful diamond can shine. Diamond is the hardest substance. It is indestructible and never wears away. Once it is cut and ground, it will shine forever.
The method of distinguishing the advantages and disadvantages of cutting;
Pick up the diamond and stare at the jumping light on it. The exquisite diamonds of lathe are dazzling and will not disappear because of inlay or different styles. Simple, right? You can do it too.
The cutting level is divided into: perfect, very good, good, average and poor.
GIA certificate, generally have listed section:
Shape and cutting method; Cutting shapes (generally round princess square, oval, olive heart, etc.). )
Three measurements, usually length * width * height.
proportion
Depth-depth ratio
Table width ratio
girdle
Bottom tip of base
end
polish
Symmetry symmetry
The essentials of choosing beautiful diamonds
1, visit jewelry stores more and compare them carefully-you will not only be surprised to see a wide range of diamonds, but also choose your favorite style from them.
2, set a budget-diamonds are no longer a luxury toy of the royal family, and the price of beautiful diamonds that meet your heart is likely to be lower than you think.
3. Read the contents of this manual-listening to expert advice can not only increase knowledge, but also build confidence. Remember, you can also be an expert in choosing beautiful diamonds.
4. Buy from reputable businesses-read more, ask more questions and try on more. Pick up a magnifying glass and observe carefully. After the transaction, asking the merchant for the appraisal certificate and invoice issued by the jewelry appraisal agency authorized by the government will make you fascinated and linger, and it is worth buying. You know, diamonds last forever, and one lasts forever.
[Edit this paragraph] Eight hearts and eight arrows cut out the perfect "fire color"
What is the difference between the "eight hearts and eight arrows" cutting in the market and the ordinary cutting? Is the effect achieved by this cutting really perfect? It is estimated that this is still a confusing problem for ordinary friends. Let me explain it to you.
Eight arrows and eight hearts are perfect Cupid cutting, which has three perfect indexes: perfect angle ratio, extreme symmetry and perfect mirror reflection. No matter how you look at Cupid perfect cut's diamonds, you can see the brightest and brightest light. Its eight arrows and eight hearts embody the meaning of love, which is unparalleled and wonderful. A Cupid rotary diamond can refract and reflect the incident light inward, presenting colorful and dazzling light, which makes the three brightest lights of a diamond-sparkle, brilliance and flame-reach the ultimate and brightest aesthetic feeling. When you look at the bottom of a diamond with eight hearts and eight arrows, you can see eight hearts with exactly the same size and shape and completely symmetrical arrangement. From the top of the diamond with eight hearts and eight arrows, we can see that the eight arrows are exactly the same in size and shape and arranged symmetrically.
The biggest difference between it and classical lathe workers lies in the following points:
1, desktop reduction (crown area is more expanded): the desktop of classical lathe is mostly 58 ~ 64%, and the desktop with eight hearts and eight arrows is 53 ~ 58%.
2. The lathe operator has 58 faces, but the eight hearts and eight arrows pay more attention to proportion, symmetry and polishing, and pursue the perfection of the lathe operator, so the fire color effect is brighter and more attractive than the classical lathe operator.
3. Higher cost: The lathe worker with eight hearts and eight arrows is nine times as high as the general lathe worker when cutting and polishing, and the diamond output rate (success rate) is far lower than that of the classical lathe worker, so the reason why the eight hearts and eight arrows are expensive is because only the diamonds with good quality in the world will be cut and polished into eight hearts and eight arrows, which is why it is more expensive than the general diamonds.
Eight hearts and eight arrows, not only because of the perfection of her works, but also because of the affectionate implication of her lovers-eight hearts and eight arrows are condensed into one, which symbolizes the eight beautiful artistic conceptions of "meeting, loving, hinting, dreaming, first kiss, lingering, tacit understanding and mountain alliance" Eight hearts and eight arrows are symmetrical to each other, just like Cupid's visit. Through the reflection of the arrow, love is firm. The light released by eight hearts and eight arrows perfectly explains the dazzling artistic conception when love comes. After listening to my explanation, are you as eager to have a perfect diamond to harvest your perfect love as Ye Zi?