Speedracer
Rough_Rock
- Joined
- Sep 29, 2004
- Messages
- 3
Hey all,
I've been looking at a GIA diamond and took it to have a Sarin Analysis done to find out more about the cut. The issue I have is that their is a big variance in the angles (dev of 2.1 on crown and 1.1 on Pavilion) which I attribute to the girdle being faceted? The diamond isnt perfect as the symmetry is only VG (due to facets on girdle not lining up 100%) I'm trying to figure out which numbers to plug into the HCA? should I use the average but I cant see that being accurate for the entire diamond?
Using the averages the HCA gave a grade of 4.1.
as an FYI it the Gemologist graded it an AGS 1 cut unnofficially as the stone is GIA.
R
vital stats.
GIA
VS2 H
5.76-5.81-3.60
D 62.2
T 59
thin-slightly thick faceted
good polish
VG symmetry
no cutet
no f's
SARIN
5.75-5.80 (avg 5.7
H 3.59
TD 62.2
T 58
C 35.4 (avg 34.8-36.9)
P 41.1 (avg 40.5-41.6)
approx AGS 1 cut.
I've been looking at a GIA diamond and took it to have a Sarin Analysis done to find out more about the cut. The issue I have is that their is a big variance in the angles (dev of 2.1 on crown and 1.1 on Pavilion) which I attribute to the girdle being faceted? The diamond isnt perfect as the symmetry is only VG (due to facets on girdle not lining up 100%) I'm trying to figure out which numbers to plug into the HCA? should I use the average but I cant see that being accurate for the entire diamond?
Using the averages the HCA gave a grade of 4.1.
as an FYI it the Gemologist graded it an AGS 1 cut unnofficially as the stone is GIA.
R
vital stats.
GIA
VS2 H
5.76-5.81-3.60
D 62.2
T 59
thin-slightly thick faceted
good polish
VG symmetry
no cutet
no f's
SARIN
5.75-5.80 (avg 5.7
H 3.59
TD 62.2
T 58
C 35.4 (avg 34.8-36.9)
P 41.1 (avg 40.5-41.6)
approx AGS 1 cut.
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