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Jewelry science popularization and shopping
Nov 14, 2022
Oval cut diamond
Because of its shape, oval diamonds often well hide their inclusions.It is almost impossible to notice the imperfections near the dome. Although the clarity of oval cut diamonds is rated from FL to I3 by GIA, everyone has a unique clarity standard.Some people may feel that the inclusion is OK, as long as it is invisible to the naked eye. Some people insist on perfect, just like their feelings.
Horse eye diamond cutting proportion - popular science film
Horse eye cut diamonds are calculated by dividing the length of the diamond by its width.Each beautiful diamond shape has a certain length and width ratio, which is considered the most attractive shape. The best proportion of horse eye diamonds is 1.75-2.15.Wearing horse eye shaped diamonds adds a touch of royal aristocratic flavor to your fingers.
How to choose the depth of diamond cutting?
The total depth or height of a diamond is measured from top to bottom, expressed as a percentage of the average waist rib diameter.(Total depth%=total depth (mm)/average waist rib diameter ✖️ 100）.The percentage of total depth is one of the main factors determining the diamond cutting grade. When a diamond has the correct combination of total depth and waist rib diameter, it can reflect light more, thus producing a stronger and more beautiful flash.On the contrary, when the total depth is too high than the average waist rib diameter, the diamond is too deep. Therefore, the light cannot be reflected correctly, the diamond looks less lively, and its brightness is lower than that of a proportional diamond.
What is a perfect cut diamond？
Generally speaking, the choice of cutting depends on the size, color, cleanliness of the stone and whether it needs to use as much raw materials as possible.A perfectly cut diamond has 57 to 58 facets. The round cut is considered a classic diamond shape, while other cuts are also known as "fancy cuts".Diamonds with less than 57 or 58 cut faces will not be considered perfectly cut diamonds in this case.
The difference between diamond and mullite
In short, the hardness of the two is different. Secondly, although the color of mullite and diamond is similar when viewed from a distance, there is a great difference between them.The color proportion of mullite is similar to that of GIA, but it is not an official level, but a term used to describe the color of stone.All the moss stones on the market have a certain color, and they will still show yellow, green or gray under certain lights. The larger the mullite, the more obvious the color.
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