To determine the cut grade of the standard round brilliant diamond the shape that dominates the majority of diamond jewelry gia calculates the proportions of those facets that influence the diamond s face up appearance.
Diamond cut 102 facets.
If the stone has an excellent cut along with excellent polish and excellent symmetry it will dazzle with massive beauty and light like no other stone.
The term cut is often used to talk about the shape of a diamond such as round brilliant cut or princess cut.
Sure you have to cut a diamond to make it a shape but when gemologists say cut they are talking about a diamond s proportions such as its depth and width and the uniformity of its facets.
As diamond cuts evolved into today s 57 or 58 facet round brilliants styles progressed through many stages.
Similarly to marquise diamonds pear cut stones may come with a french tip and they can suffer from a bowtie effect.
But shape refers to the form of the diamond while cut refers to how the diamond s proportions reflect light.
Very small 0 02 carats 4 mg diamonds known as melée are usually given simplified cuts i e with fewer facets this is because a full cut brilliant of such small size would appear milky to the human eye owing to its inability to resolve the stone s dispersive fire conversely very large diamonds are usually given fancy cuts with many.
Now that you understand brilliant cut let s talk about brilliance with extra facets.
Well these are not the common.
Each shape also has its own unique shine and affects how sparkly the diamond is.
By 1750 when the brilliant cut had developed into a style with a circular face up outline it had passed through many variations in facet size and proportions.
The elongated shape of a pear cut diamond creates a slenderizing effect on a finger and makes a wearer s hands more elegant.
And of all the diamond 4cs it is the most complex and technically difficult to analyze.
The pear cut diamond usually features 58 facets and it has a ratio of 1 50 to 1 70.
If a diamond is cut well it sparkles more that s no mystery which is why true heart cut diamonds are the best you can buy.
Face up view of the celebration 102 diamond with a messy looking appearance.
The celebration 102 diamond also has a nail head like dark patterning.
The size of a diamond may also be a factor.
You see the thing with additional facets is they tend to make diamonds perform better under certain lighting conditions e g.
Did you know that the term diamond cut does not refer to the gemstone s shape.
