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GIA Cut Grade Estimation Tables for Standard Round Brilliant Cut Diamond Explains how to locate a particular proportion combination, and determine whether it is close to a boundary in the cut grading system.
- English (Uk)
GIA Cut Grade Estimation Tables for Standard Round Brilliant...
- English (Uk)
There are several ways to estimate a GIA Cut Grade for a standard round brilliant cut diamond. Using GIA Facetware® online (http://facetware.gia.edu). The user inputs accurate diamond proportion measure-ments into this free online software program to obtain an estimate of the cut grade.
14 Μαρ 2013 · The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the highest quality diamond. First up, an overview of the 4Cs: Color, Clarity, Cut, and Carat Weight.
The new diamond cut grading system evaluates seven different components of each diamond's cut to understand the various factors that determined how the cut of that particular stone affected its appearance.
These tables provide guidelines for estimating a GIA Cut Grade. Values for the other essential proportion parameters are kept constant: star length (55%), lower half length (80%), girdle thickness (3.0%), polish and/or symmetry (VG or EX), girdle min/max (THN-STK), culet size
11 Φεβ 2013 · Here is a printable diamond buying guide designed to help anyone shopping for a diamond understand the 4Cs of Diamond Quality; Color, Clarity, Cut and carat weight. Print this handy guide and take it with you wherever you need to better understand the 4Cs of diamond quality.
9 Νοε 2015 · Here, we will take a deeper look at how diamond cut grading information is presented for standard round brilliant diamonds in the D-to-Z color range and describe what goes into GIA’s diamond cut grading process.
