Diamond Information Cut
The 'Cut' of a diamond is considered by many to be the most important of the 4'c's. It is the overall cut of a diamond that is the major contributing factor determining brilliance and scintillation.Diamonds are cut in a variety of shapes however the most popular shapes today are the Round Brilliant cut and the Princess cut. On the diagram below are the accepted range of percentages and angles for the 'Perfect' Ideal Round Diamond.
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For a diamond to have perfect brilliance and scintillation all shapes have certain proportion standards to meet which result in high weight loss of the rough crystal. Sometimes the diamond cutters compromise and accept lesser proportions and symmetry in order to avoid inclusions and/or to preserve carat weight.
The diagram below clearly illustrates how light travelling into the stone from the table is lost through the sides if the diamond has been cut either too deep or too shallow. Only if the diamond has been cut perfectly that light will be returned back throught the table giving perfect brilliance and scintillation.
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Hearts & Arrows diamonds or ideal cut diamonds are precisely cut round brilliants that, when examined using a special viewer, display eight hearts through the pavilion from below and eight arrows through the crown from above. As ideal cut diamonds, hearts and arrows diamonds typically fetch a premium in the market. But, while the Hearts & Arrows pattern that is seen through the viewer may be indicative of a superior cut, the pattern can vary in accuracy and crispness.
This is something to consider and discuss with your diamond merchant when viewing and purchasing hearts and arrows diamonds. This also reiterates the need to ensure that you only purchase certified diamonds for your peace of mind.
Each of the major Internationally recognised laboratories such as GIA,AGS,HRD and IGI have their own set of grading criteria which are all slightly different so there are small tolerances between the grading houses on what the dimensions create ‘ideal cut diamonds'.
The Diamond Jewellery Studio , along with its partners , cut and manufacture TripleEx H&A™ Hearts and Arrows Diamonds. These Hearts and Arrows Diamonds are perfect Ideal cut diamonds showing precise Hearts and Arrows and are the finest on the market. Our partnership with DeBeers DTC sightholders allows us to supply these diamonds at a fraction of the cost in retail outlets. Contact us today to view our current stock and to discuss your personal requirements.
Below are the Cut Grading Charts set out by the(AGA) Accredited Gem Appraisers.
AGA Cut Grading Chart for Round Brilliant Cut
AGA Cut Grading Chart for Princess Cut
AGA Cut Grading Chart for Pear, Heart, Oval and Marquise
AGA Cut Grading Chart for Emerald & Radiant Cut
