Price differential of a diamond
The difference is never in the question of whether the diamond has a report or not. (The price of the diamond report is relatively low compare to the value of the stone). The key is in the true 4 Cs of a diamond. 1 Cut, 2 Clarity 3 Color 4 Weight
Among the 4 Cs, Weight is easy to define with diamond scale. Color can also be measured accurately by color machine or the diamond master set. Clarity is subjective but the guideline was accepted by major laboratories of the world. Reputable Laboratories includes AGS and GIA is implementing 3 dimensional measures on the proportion of the diamond in order to give a more accurate diamond cut grade.
Some people might be puzzled by the huge price difference for the same (4 Cs) stone with different report.
For example:
1ct DIF with GIA EXEXEX compared with
1ct DIF IGI EXEXEX, the price difference cab be as high as 20-30%.
Again, the cost was never in the cost of the report itself. The key is on the positioning of the Diamond Grading Laboratories (AGS, GIA, HRD, IGI EGL NGTC etc) in relation to the reports issued. Thus creates the difference in price of a diamond
Same diamond eg. 1.01 GVS1 VG G EX
Each Laboratory might assigned a different Grade (whether it is in the color, clarity, cut, polish, or symmetry grades) based on the Labs positioning in the market. eg 1.01 FVVS2 EXEXEX, 1.01GVVS1, EXEXVG, 1.01 HVS1 VGVGVG, 1.01HVS2 VGVGG etc
Price difference was the result of such positioning.
For more information regarding to the market positioning of each Laboratory in relation to the diamond price difference, please refer to the diamond report page or contact us for questioning.