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Quality of these 1ct stones???

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PS

Rough_Rock
Joined
Nov 24, 2006
Messages
2
Hi to all,

I''m considering the following diamonds (to be used for earrings):

Cost of each is about US$4700-

What are the forums thoughts on the quality of each stone???

Which 2 stones would be best (I assume STONE 2 is the best)???

For the purposes of my question assume HRD gradings/certificates are accurate & stones are true Hearts & Arrows.

STONE 1-
HRD
brilliant - 1.01ct - G - SI1 - Hearts & Arrows
6.37 - 6.40 x 3.96 (ie. total depth = 62?)
fluor. nil
VG/VG
culet pointed
girdle medium 4.5% faceted
table 59%
crown 14.5%
pavillion 43%
HCA score is 2.2 (VG/VG/VG/VG)

STONE 2-
HRD
brilliant - 1.01ct - G - SI1 - Hearts & Arrows
6.38 - 6.42 x 3.96 (ie. total depth = 61.9?)
Fluor. slight
VG/VG
culet pointed
girdle medium 4% faceted
table 58%
crown 14.5%
pavillion 43%
HCA score is approx. 1.3 within TIC range (EX/EX/EX/VG)

STONE 3-
HRD
brilliant - 1.01ct - G - SI1 - Hearts & Arrows
6.27 - 6.33 x 4.03 (ie. total depth = 64?)
Fluor. nil
VG/G
culet pointed
girdle medium 4% faceted
table 55%
crown 16%
pavillion 43%
HCA score is approx. 2.1 (VG/EX/VG/G)

THX in advance.
 

diamondseeker2006

Super_Ideal_Rock
Premium
Joined
Jan 11, 2006
Messages
55,116
#1 and #2 have the most similar diameters and table size, and those are the two most visible things to me. I''d want to see the inclusions, though. #3 is too deep which is making the stone smaller than it should be for a 1 ct. stone.
 

Lorelei

Super_Ideal_Rock
Premium
Joined
Apr 30, 2005
Messages
42,064
Welcome to PS


HRD is an Antwerp based lab, according to some professional opinions, it is an accurate lab which is widely used outside the US, however there may be some differences. But it is a reputable lab withall and is not widely known of Stateside. Also because a diamond is said to be H&A doesn''t mean it is. A true H&A has to conform to very rigid standards, because a diamond might display this effect doesn''t mean it can be considered to be, many well cut diamonds will show an arrow pattern for example.

Regarding your choices, I don''t know how to convert crown and pav percents to angles which are more accurate, but I would knock the last diamond out of the running at once due to it''s depth. See if your vendor can run a Sarin on these diamonds, he might have the equipment on the premises, so we can get a better idea of proportion. I would want this info if I was lucky enough to be getting a carat per ear!!!
 

Ellen

Super_Ideal_Rock
Joined
Jan 13, 2006
Messages
24,426
I agree with the others, first two are the contenders. Try and get a Sain on them. I have heard experts on here say HRD is the equivalent of GIA, and like Lorelei said, are reputable.

Lucky you!!
 
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