Diamond Cutting Techniques, How to Cut a Diamond?

Diamonds are only polished, not cut, and the shape of the diamond is generally natural, and synthetic is worthless

A long time ago, it was common to machine rough diamonds, which were inserted into a mechanical jig and rotated with a thin (about millimeter) bronze blade at 11,000 revolutions per minute for hours or even daysDue to the large cutting width, there is often a tendency for the crystal half to break, and rough diamonds can only be mechanically sawn in certain crystallization directions, often resulting in the loss of a large number of rough diamonds. In addition, the effect of blade deformation on the cut can cause the cutting surface to deviate from the specified cutting surface.

It was not until the 1980s that there was a breakthrough in diamond cutting laser technology, and the limitations of crystal oriented cutting were completely overcome. Any diamond, regardless of its structural flaws, can be cut in different directions, which gives you complete freedom to plan and cut the diamond. When using laser processing cells, sawing is faster and less costly.

Batch laser processing takes only a few minutes, which is enough to load dozens of crystals into the machine. Of course, the process of mechanical sawing still exists. While laser sawing is very useful, manual mechanical sawing is unavoidable, especially for larger diamonds.

The result depends on the cutter's technique. The so-called Russian cut is so precious because of the high standards of diamond cut and the expertise of the Russian masters.

Diamond cutting diamonds are mainly cut by splitting drills, sawing and other methods. Although diamonds are very hard, they are not very hard in all directions, and it is much easier to split along the grain of wood, just like the wood in the countryside. The same is true for splitting diamonds, where one diamond is dented in the texture of another diamond, and then a square-edged knife is used to split into two or more pieces with appropriate force on the groove.

However, many diamonds are not suitable for splitting, so another way is sawing, which is to apply diamond powder to the saw blade and rotate it at high speed. With the introduction of laser technology, the efficiency of cutting diamonds has also improved a lot.

The next step for round diamonds is how to cut the diamond into so many faces, and standard round diamonds are 57 or 58 faces. Mainly because of an octagonal hand tool, although there are many round diamond countertops, but in fact, it is four sides repeated, the octagonal hand is actually fixed after the diamond is rotated eight times, to get 32 faces. The same is true for the pavilion, but the pavilion only has 3 faces, and the eight repetitions are 24 noodles plus 56 noodles plus a countertop, and the remaining surface after grinding is generally 57 faces, but the pavilion may sometimes grind a small surface and sometimes may not, so the final surface is 57 or 58.

Yellow diamond cut is the only diamond quality that can be directly affected by artificiality, so cut is very important, the world's earliest diamond cut was invented by Belgian Ludwig van Beckham in 1454, he used the diamond's own hardness to polish the rough. 550 years later, the principle remains the same, despite improvements in diamond polishing tools.

Before cutting the diamond, the diamond should be cut to determine the place to be cut, and then the diamond with the line should be placed on the set, and another diamond should be split along the dividing line, and then the diamond should be sawed open with a saw disc, and then the diamond will be polished, and then each flap of the diamond will be ground out, and the diamond will be polished.

Diamond Cutting Steps:

Before a diamond is cut, it is marked with a line, or mark. Once the diamond embryo has been inspected, the area to be cut is divided on the surface of the diamond to ensure that the cut diamond retains its original weight while reducing inclusions.

The lined diamond is then placed on a casing and another diamond is split along the dividing line, after which the saw disc is rotated at high speed to see the diamond open. The sawn diamond is then rounded, shaped and polished into the desired shape according to the required requirements.

The flaps are then ground out on a cast iron disc coated with diamond powder and lubricating oil. First of all, it is necessary to grind out 8 large facets, then 16 facets, plus a culet for a total of 25 facets, and then extend 3 small facets, the kite face and the upper waist facet, and polish it.

The cutting methods of diamonds are: round cut is also called brilliant cut, princess cut, emerald cut, cushion cut, cushion cut, heart cut, oval cut, pear cut, marquise cut, marquise cut, Asscher cut square cut; My favourite is the round cut, also known as the brilliant cut, and with its stunning fire quality and pleasing symmetry, a round cut diamond is a timeless classic that will never go out of style.

Diamonds are cut round, pear, princess, marquise, oval, heart, emerald, radiant. My favorite cuts are emerald, heart, oval, princess, round.

There are many kinds of this method, there are hexagonal cuts and diamond cuts, and I like the hexagram cutting method the most, which is very shiny.

Round, olive, emerald, pear, cushion, oval, princess, radiant, heart, etc., but the favorite is the heart, which feels more technical.

Round-cut diamonds are by far the bride-to-be's favorite cut, and with their stunning fire quality and pleasing symmetry, round-cut diamonds are a timeless classic that will never go out of style.

Emerald diamonds are a symbol of glamour, and many people choose this type of center stone for their engagement rings. Known for its impeccable chic style. This cut is one of the oldest diamond cuts.

The long side of the gemstone creates a visual effect known as Hall of Mirrors, in which the interplay of light and shadow creates an unparalleled fire. This is also my favorite.

Diamonds are cut with diamond saw blades, which is a phosphor bronze disc coated with diamond powder and lubricant at the edge, but at present, it is mostly laser-activated cutting, diamonds are the hardest substances in natural ores, and the larger the diamond, the rarer it is, and diamonds are produced in all countries in the world, mainly in Australia, Zaire and other five countries.

How diamonds are cut

1. Diamond saw blade

nbsp;Diamonds are cut with a diamond saw blade, which is a phosphor bronze disc that applies diamond powder and lubricant to its edges, and then the saw blade is fixed on a shelf to cut the diamond by high-speed rotation.

2. Material characteristics

nbsp;Diamond is an extremely dense carbon crystal, the hardest mineral in natural minerals, but diamonds are very brittle and will basically shatter when hit by gravity, and because diamonds are extremely dense, the larger the size of the diamond, the rarer the diamond is.

3. Distribution of origin

Diamonds are produced all over the world, with an annual production of up to 100 million carats, of which Australia, Botswana, South Africa, Zaire, and Russia account for 90% of the world's total production, and Antwerp, Belgium, is the world's diamond cutting center.

It is necessary to fully consider the technical guarantee of cutting, so that the natural brilliance charm of the diamond can bloom to a better extent, which is in the diamond cutting process, from the first art machine, to the precise effect of the operation, and then to the guarantee of the spring Ming certificate with perfect exquisite processing design as the basis, there is an excellent artistic sense and effect. Through cutting, the raw materials are processed, which is reflected in the crown, waist circumference, pavilion several important parts, to have a comprehensive cutting effect, to achieve the highest level of symmetry, after polishing, the pursuit of the final effect of brightness, the better the brightness, the higher the value, the more perfect.

The process of cutting and processing natural diamonds requires a strict diamond cutting process, and what kind of work each designer makes, in the processing process of the same material, must be cut and processed objectively, and often because of the operation method and specific proficiency, aesthetic standards, etc., resulting in a great difference in the final cut of the diamond. A well-cut diamond is worth more. With brightness as the most important cutting standard, from the actual cut application and performance, in order to achieve excellent cut standards and cut target guarantees, strict cutting technology and professional standards are the highlights.

The basic condition of the diamond cutting process is the machine, and the important software is the master's craftsmanship. Whether a natural diamond can bloom with infinite charm is, to a large extent, a continuous process of effective cutting and professional performance. The embodiment of perfect cut, the focus is on having a professional foundation, with a more delicate design, so that the actual cut quality, on the basis of a more perfect design, through manual cutting operations, to achieve the effect of the perfect charm of the diamond to the greatest extent, is the basis for ensuring excellent craftsmanship, is the element of perfect cutting technology.

The technical standard of the cutting process of diamonds is to ensure that there is a better stone foundation, exquisite craftsmanship characteristics, and perfect cutting technology, so that the realization of the cutting goal can reflect the practical fairness from a more professional perspective. Especially in the process standard, there is the goal of pursuing the ultimate, and the quality assurance at three levels is a common pursuit and practice. One is polish, the second is the grind, and the third is symmetry, which together is the key to cut quality.

This hole is very complex and complicated, requiring a special machine, and the master's craftsmanship also needs to be particularly perfect in Qingpei, and it must be cut according to the final design drawing, which must be particularly attentive.

It needs to be cut and polished first, and the spine Changyuan must try to maintain the original weight, not messing around to reduce the content inside, cutting is to remove the impurities on it, and to retain the original quality.

I understand it, because that's what I learned, and in fact, the cutting technique is very powerful, and it can turn a relatively hard stone into a diamond.

Originally, only diamonds could cut diamonds, so the saw blade was a phosphor bronze disc with diamond powder and lubricant on the edges. The diamond is fixed to a clamp and the saw disc rotates at high speed to see the diamond open. Modern times have also introduced laser technology into diamond cutting, which has greatly improved the processing efficiency of drill blanks.

Originally, only diamonds could cut diamonds, so the saw blade was a phosphor bronze disc with diamond powder and lubricant on the edges. The diamond is fixed to a clamp and the saw disc rotates at high speed to see the diamond open. Modern times have also introduced laser technology into diamond cutting, which has greatly improved the processing efficiency of drill blanks.