Here you will learn how gia diamond grades are established and how those grades affect the diamond s price.
Best grade diamond cut.
Blue nile offers four different cut grades ideal.
Cut grade is the most important factor in determining the overall appearance of a diamond because a poorly cut diamond will seem dull even with excellent clarity and color.
Follow these recommendations to get the most value.
And of all the diamond 4cs it is the most complex and technically difficult to analyze.
For standard round brilliant cut diamonds falling in the d to z color range the report also includes a gia cut grade.
If ideal round brilliant cuts.
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.
Price comparison of si1 vs.
And knowing of these proportions will let you find the best diamond within the same cut grade.
Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades.
The diamond industry uses the word cut in two different ways.
First it s used to describe the shape of a diamond for example an emerald cut diamond.
Conversely a well cut diamond can have a slightly lower color g h or clarity si1 si2 and still look quite beautiful due to its superior ability to create sparkle and.
Both diamonds will look similar when mounted on a ring but one costs almost twice as much.
When it comes to grading diamond s the cut is a grade of the diamond s reflective qualities not the diamond s shape.
But it s mainly the proportions between different parameters that determine the diamond s brilliance.
The best clarity grade depends on the shape of your diamond.
Achieving the best cut for a diamond reflects in the stone s final beauty and value.
Cut quality is graded by the ags as ideal excellent very good good fair or poor.
It s high time we delve into these features.
When looking at ags diamonds we recommend only considering ideal cut diamonds for the best quality.
This cut represents roughly the top 15 of diamond cut quality it reflects nearly as much light as the ideal cut but for a lower price.
For round cut diamonds under 1 carat a vs2 or si1 clarity grade will give you an eye clean diamond sometimes even si2 doesn t have visible inclsuions.
Every diamond certified by the gia undergoes a thorough independent evaluation.
The gia laboratory issues diamond grading reports for loose natural diamonds in the d to z color range that weigh 0 15 carats or more.
An excellent cut and an excellent symmetry go hand in hand.