General information
Model	Sample Helium Brilliant
Expert name	Sample Expert Name
Report date	06.09.2006
Real weight, ct	0.37
Calculated weight, ct	0.37, 0.3764
Spread	0.03 ct, 8.44%
Measurements, mm	4.778 (4.765-4.792) x 2.722 / 0.019
Appraiser title	AGS_2005
Overall cut quality	3
Overall symmetry quality	PR
Extra Facet / Nat	Yes (2)
Girdle to MIC, mm	0.019
Average values
Total height, mm	2.722
Crown height, mm	0.544
Pavilion depth, mm	2.041
Table, mm	3.059
Culet, mm	0.027
Girdle Bezel, mm	0.136
Girdle Bone, mm	0.158
Girdle Valley, mm	0.074

 

Parameter	Avg	Min	Max	Dev	Cut	Sym	1	2	3	4	5	6	7	8
Diameter, mm	4.778	4.765	4.792	0.57%	N/A	EX	4.785	4.774	4.777	4.777
Crown angle, °	32.25	31.11	32.55	1.44	N/A	VG	32.50	32.51	32.16	31.11	32.45	32.24	32.47	32.55
Pavilion angle, °	40.68	39.68	41.53	1.86	N/A	VG	40.38	40.33	39.68	40.18	40.78	41.43	41.53	41.10
Total height, %	56.96				N/A
Crown height, %	11.38	10.61	12.35	1.75	N/A	VG	12.35	12.15	11.58	10.84	10.67	10.61	11.15	11.66
Pavilion depth, %	42.72	41.72	43.77	2.05	N/A	GD	41.72	42.30	41.99	42.92	43.60	43.77	43.17	42.28
Table, %	64.03	63.82	64.12	0.29	N/A	EX	64.06	64.11	64.12	63.82
Culet, %	0.57	0.39	0.68	0.28	0	EX
Girdle Bezel, %	2.84	2.41	3.40	0.98	0	EX	2.87	2.41	3.40	3.16	2.71	2.50	2.62	3.06
Girdle Bone, %	3.31	3.02	3.71	0.69		EX	3.04	3.55	3.45	3.08	3.71	3.04	3.60	3.02
Girdle Valley, %	1.55	1.22	1.98	0.75	0	EX	1.43	1.25	1.41	1.96	1.98	1.75	1.68	1.35
							1.64	1.33	1.31	1.22	1.42	1.73	1.71	1.55
Star: Upper ratio, %	58.29:	53.81:	62.79:	8.98			54.81:	58.07:	60.72:	58.81:	62.79:	59.87:	57.44:	53.81:
	41.71	46.19	37.21				45.19	41.93	39.28	41.19	37.21	40.13	42.56	46.19
Star angle, °	18.74	17.50	19.77	2.27		GD	19.29	19.45	19.17	18.52	17.50	18.26	17.98	19.77
Upper girdle angle, °	39.95	39.01	41.04	2.03		GD	39.61	39.33	39.61	40.40	40.20	39.76	39.34	40.04
							40.92	39.01	41.04	40.15	40.97	39.58	39.40	39.88
Lower girdle angle / Halves angle, °	41.57	40.59	42.49	1.90		VG	41.13	41.12	41.08	40.59	40.64	41.00	41.35	41.58
							41.83	42.28	42.44	42.49	42.29	42.07	41.84	41.40
Twist, °	1.49	0.17	3.62	3.45		VG	0.40	0.61	0.58	2.20	3.62	0.91	0.17	3.44
Crown height, mm	0.544	0.507	0.590	0.083			0.590	0.581	0.553	0.518	0.510	0.507	0.533	0.557
Pavilion depth, mm	2.041	1.993	2.091	0.098			1.993	2.021	2.006	2.051	2.083	2.091	2.063	2.020
Table, mm	3.059	3.050	3.064	0.014			3.061	3.063	3.064	3.050
Culet, mm	0.027	0.019	0.032	0.014
Girdle Bezel, mm	0.136	0.115	0.162	0.047			0.137	0.115	0.162	0.151	0.129	0.120	0.125	0.146
Girdle Bone, mm	0.158	0.144	0.177	0.033			0.145	0.170	0.165	0.147	0.177	0.145	0.172	0.144
Girdle Valley, mm	0.074	0.058	0.094	0.036			0.069	0.060	0.067	0.094	0.094	0.084	0.080	0.064
							0.078	0.064	0.062	0.058	0.068	0.083	0.082	0.074
Fish eye effect, °	3.62				N/A
Culet through Crown Bezel, °	25.18				N/A
Measurement as per OctoNus theory
Crown angle, °	32.25	31.83	32.48	0.65			32.48	32.38	32.31	31.83
Pavilion angle, °	40.68	40.58	40.88	0.30			40.58	40.88	40.60	40.64

	Girdle center		Culet center		Table center

Offset by table axis
Girdle-Culet	1.50 ± 0.26, %	0.072 ± 0.012, mm
Girdle-Table	1.28 ± 0.23, %	0.061 ± 0.011, mm
Table-Culet	1.82 ± 0.27, %	0.087 ± 0.013, mm

Azimuths deviation from ideal	1	2	3	4	5	6	7	8
Pavilion, °	0.00	0.55	0.58	2.11	1.66	0.72	0.62	0.04
Lower girdle facets / Pavilion Halves, °	0.21	2.48	-0.93	1.17	1.50	2.16	2.20	2.02
	1.77	1.97	1.67	1.02	0.54	0.73	0.23	0.19
Crown, °	0.40	1.17	0.00	-0.09	-1.96	1.63	0.45	3.48
Upper girdle facets, °	-1.00	2.64	-0.95	0.51	-1.19	1.08	-0.93	0.98
	-3.40	5.76	0.79	3.40	0.07	5.52	1.89	0.83
Star facets, °	-0.73	-1.25	0.07	-1.76	0.57	1.71	1.36	2.03

Paint / Dug	Avg	Max	Type	1	2	3	4	5	6	7	8
Crown painting, °	-1.59	-4.13	Painting	-1.40	-1.47	-2.12	-0.51	-1.20	-1.17	-0.84	-2.94
				-1.44	-4.13	-0.84	-2.95	-0.38	-2.04	-1.58	-0.43
Crown painting, notches	0.4, Small	1.1		0.4	0.4	0.6	0.1	0.3	0.3	0.2	0.8
				0.4	1.1	0.2	0.8	0.1	0.5	0.4	0.1
Pavilion painting, °	-0.28	-1.92		0.21	-1.92	-1.49	-0.59	0.92	-0.04	0.09	-0.36
				0.11	-1.25	0.96	-0.40	-0.07	-0.69	0.19	-0.19
Pavilion painting, notches	0.1, Absent	0.5		0.1	0.5	0.4	0.2	0.2	0.0	0.0	0.1
				0.0	0.3	0.3	0.1	0.0	0.2	0.1	0.0

 

Cut parameters description

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