A: The term "Ideal Cut" generally refers to cut proportions of a round stone which are mathematically correct in relation to light physics thereby allowing the stone to return entering light back to the viewer as efficiently as possible. Every shape of stone theoretically will have its own set of ideal cut parameters but those of fancy shapes (and occasionally even rounds) are scientifically debated from time to time, however most skilled gemologists do agree on certain cut angles and percentages of depth that yield consistently excellent results. Kelvin is a G.I.A. graduate gemologist and has many years of experience viewing, choosing, and grading loose diamonds and will be happy to explain the ideal cut parameters of the diamond you are looking for and help you to select the best one out of our many ideal cut stones.
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