Here we will discuss types of cut (procedure/styles) that can be applied in the same shape of a diamond, giving a slight to significant change in the appearance.
Though mostly the terms diamond cut and diamond shape are used interchangeably, in actuality they are two unlike things.
The shape of the diamond means how it appears due to its outline, like heart-shaped, round, or any other fancy shape, and just by looking at it, we get to know that a round diamond is circular and a heart-shaped diamond looks like a heart. The cut of a diamond indicates the types of facets or their arrangement, symmetry, and measurements in cutting for any same shape, and these affect the finish and light reflection of a diamond in the same shape, like a round diamond can be cut shallow or deep in height, but the shape will finally appear as it is that is round.
The cut comprises the arrangement of facets, the manner in which it is cut, the symmetry, and the place of facets on the rock. Suppose a round cut diamond can be a rose cut diamond that is shallow in height and a totally different variety of cut than a round brilliant cut that emits the maximum amount of brilliance; for example, a pear-modified brilliant cut diamond that employs the same cutting style as a brilliant round cut diamond with a pavilion crown table but shape is unalike; other cuts are step cut, which is extensively used in emerald cut, forming a hall of frame effect, and this same stone can be made shallow or deep, retaining the same octagon shape shape. Any cut and polished diamond may even remain round or oval without having any single facet on it.
Any same brilliant cut can be categorized according to its quality, like a good cut, a very good cut diamond, or an excellent cut diamond, and it is judged on the basis of the amount of brilliance it is giving and how ideal the proportions are; it should not be too deep or too shallow, the table surface area should be in a proper ratio with that of the crown, and so on. Fluorescence. The polish and origin of the diamond also affect its shine and luster, followed by types of inclusions like clouds, etc.
A diamond cut in a very precise manner with many facets (at least 44) to bring out the exceptional brilliance of the stone. In this, the rear size is cut like a cone opening above, making the girdle shape of the stone; here all light from the front reflects towards the cone of the diamond or gem. This cutting may be applied to various shapes like pear, heart, but is a synonym with rounds.
The most common of shapes is the round brilliant cut diamond and is the most demanded and selling diamond of all other shapes. Around 75% of the diamonds selling worldwide are round cut diamonds, as the facet arrangement linked to each other in them has the potential to produce maximum brilliance and shine than any other shape and cut and thus enjoys an advantage with its counterparts. Almost all the melee diamonds used in the jewelry are round brilliant-cut melees.
The princess cut diamond is the second highest preferred shape in diamonds as a cushion. They were created first, near the year 1980. It has parallel 4 sides and pointed corners (square shape). They are easy to handle due to their shape with edges and manufacture cut and polish; these give excellent brilliance and luster.
This is also a modified cut diamond similar to rugby football tape pointed on 2 sides and bulged from the midsection like a leaf. The Marquis diamond has the biggest surface area as to weight. The marquise cut, also known as the oval cut, gives the illusion of being bigger than weight compared to other shapes like princesses or cushions.
This is again a brilliant cut diamond and is cut like virtually the round brilliant cut, so it has the same kind of brilliance as the round cut diamond, but it may have this advantage as an elongated version of round to create an illusion as a marquise cut to depict size and weight to be bigger than other shapes like round or cushion of the same weight.
A cushion-shaped diamond is among the centuries-old cutting styles used to happen of diamonds. It is a kind of modified square cut with rounded ends. The diamonds, which are traded as old mine cuts now, are mostly cushions. Now, with more refinement in the cuts and proportions, the demand for this cut has increased.
A pear-shaped diamond is a mix of round and marquis-cut diamonds with tapered points on one side and round on another; they are brilliantly cut and show good firing in the stone. The pear-shaped diamond needs to be cut with proper symmetry, as the tapered point should remain in the center of the round curve of another side. The curved part should be uniformly arched on both sides to accelerate towards the taper point; otherwise, it will no longer remain a pear-modified brilliant-cut diamond. In diamond trading, the prices of all fancy-shaped diamonds are generally decided as per the price chart of pear shape in the Rapaport chart.
The emerald cut diamond is a unique cut that gives a distinct type of look to the diamond. Instead of the brilliance of a brilliant cut, step cutting is done, which depicts a hall in a frame effect as the stone is moved; it displays a change in the shades from dark to light visible on each step or plain of the cutting. It is more famous in precious gemstone emerald and is done the same way in natural diamonds.
It is a modified type of emerald cut and was first discovered in Holland by the Asscher brothers in 1902. It has similar step facets as in an emerald cut diamond but is not elongated as an emerald cut but is in square shape with a higher crown and smaller table; the table is always kept small compared to other flat facets, so this type of faceted combination gives the stone more firing or brilliance.
It's an octagon-shaped diamond that is completely cut as a brilliant cut diamond with lots of facets at the crown and pavilion, and it has the ability to give more firing/luster than other of its counterparts like cushion or princess cut diamonds, as it is something in between those two. It is the second-most shiny diamond after round brilliant and looks well in setting with both rounded and square-cornered diamonds in jewelry.
A heart-shaped diamond is really a unique and different shape from the rest. A heart-modified cut diamond signifies love and is used as pendants in most of the jewelry; it is cut like the shape of a heart, but these diamonds, if below 0.40ct, may not be a good choice as after setting in prongs, their shape is not clearly visible in that little size.
Now all these cuts have a unique look for every type of color shade in diamonds, like an emerald cut diamond if it has a very light tint of yellow or brown; it will be easily visible, and the same shade if it happens in an asscher cut or round brilliant cut from the table; the very light shade almost disappears. Minor inner inclusions tend to less appear in a round brilliant cut than in a rose cut or an oval cut diamond, so color, inclusions, and luster even depend on the kind of cut and shape followed by the quality of polish. Now there is even more new technology used in cutting diamond facets, like extra facets given to the brilliant cut diamonds for extra luster.
Most of the rough or uncut diamonds mined worldwide are cut and polished in India. Diamond miners like Al Rosa and De Beers in South Africa auction the rough diamond, which is then cut and polished in India to form a finished diamond to be used in jewelry.
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