Looking for opinion about GIA cert. diamonds

bucklwi1 · Jun 14, 2008

I have been doing an awful lot of reading on these forums latley and there is tons of information. I am considering 8 stones right now. All are round brillaint cut diamonds and all of them are GIA certified. I was pluggin numbers into the HCA and was wondering if anyone had more insight as to which diamonds would be best? If there are too may stones listed, I apologize. I will narrow it down and repost. I am particularly thrown off by stone 6. It is listed as GIA "GOOD" cut, but the HCA returns a very good score of 1.3.

Does anyone have any input on the following stones, relating to depth and table, etc?



<A name="OLE_LINK3"></A><A name="OLE_LINK2"></A><A name="OLE_LINK1">Stone 1</A>
0.93 carat<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com<o:p></o:p>

G-color<o:p></o:p>

SI1<o:p></o:p>

GIA Excellent cut<o:p></o:p>

Polish: Excellent<o:p></o:p>

Symmetry: Excellent<o:p></o:p>

Depth: 62.3%<o:p></o:p>

Table: 57%<o:p></o:p>

Crown Angle: 34<o:p></o:p>

Pavilion angle: 41<o:p></o:p>

Girdle: medium to slightly thick, faceted<o:p></o:p>

Culet: none<o:p></o:p>

HCA rating: 1.5<o:p></o:p>

Price: $3950<o:p></o:p>

<o:p></o:p>

Stone 2<o:p></o:p>

0.98 carat<o:p></o:p>

H-color<o:p></o:p>

SI1<o:p></o:p>

GIA Very Good cut<o:p></o:p>

Polish: Very good<o:p></o:p>

Symmetry: Excellent<o:p></o:p>

Depth: 59.7%<o:p></o:p>

Table: 57%<o:p></o:p>

Crown Angle: 33.5<o:p></o:p>

Pavilion angle: 40.4<o:p></o:p>

Girdle: medium to slightly thick, faceted<o:p></o:p>

Culet: none<o:p></o:p>

HCA rating: 0.8<o:p></o:p>

Price: $4300<o:p></o:p>

<o:p></o:p>

Stone 3<o:p></o:p>

0.96 carat<o:p></o:p>

F-color<o:p></o:p>

SI1<o:p></o:p>

GIA Excellent cut<o:p></o:p>

Polish: Very good<o:p></o:p>

Symmetry: Very good<o:p></o:p>

Depth: 61.1%<o:p></o:p>

Table: 56%<o:p></o:p>

Crown Angle: 34<o:p></o:p>

Pavilion angle: 40.6<o:p></o:p>

Girdle: medium to slightly thick, faceted<o:p></o:p>

Culet: none<o:p></o:p>

HCA rating: 0.6<o:p></o:p>

Price: $4645<o:p></o:p>

<o:p></o:p>

Stone 4<o:p></o:p>

1.04 carat<o:p></o:p>

H-color<o:p></o:p>

SI1<o:p></o:p>

GIA Very good cut<o:p></o:p>

Polish: Very good<o:p></o:p>

Symmetry: Excellent<o:p></o:p>

Depth: 60.6%<o:p></o:p>

Table: 58%<o:p></o:p>

Crown Angle: 35.5<o:p></o:p>

Pavilion angle: 40.4<o:p></o:p>

Girdle: thin to medium, faceted<o:p></o:p>

Culet: none<o:p></o:p>

HCA rating: 0.8<o:p></o:p>

Price: $4639<o:p></o:p>

<o:p> </o:p>

Stone 5<o:p></o:p>

0.96 carat<o:p></o:p>

H-color<o:p></o:p>

VS2<o:p></o:p>

GIA Excellent cut<o:p></o:p>

Polish: Excellent<o:p></o:p>

Symmetry: Excellent<o:p></o:p>

Depth: 61.6%<o:p></o:p>

Table: 57%<o:p></o:p>

Crown Angle: 35<o:p></o:p>

Pavilion angle: 40.8<o:p></o:p>

Girdle: medium to slightly thick, faceted<o:p></o:p>

Culet: none<o:p></o:p>

HCA rating: 1.6<o:p></o:p>

Price: $4600<o:p></o:p>

<o:p> </o:p>

Stone 6<o:p></o:p>

1.02 carat<o:p></o:p>

F-color<o:p></o:p>

SI1<o:p></o:p>

GIA Good cut<o:p></o:p>

Polish: Very Good<o:p></o:p>

Symmetry: Excellent<o:p></o:p>

Depth: 62.4%<o:p></o:p>

Table: 59%<o:p></o:p>

Crown Angle: 34.5<o:p></o:p>

Pavilion angle: 40.4<o:p></o:p>

Girdle: slightly thick to very thick, faceted<o:p></o:p>

Culet: none<o:p></o:p>

HCA rating: 1.3<o:p></o:p>

Price: $4715<o:p></o:p>

<o:p> </o:p>

Stone 7<o:p></o:p>

1.12 carat<o:p></o:p>

H-color<o:p></o:p>

SI1<o:p></o:p>

GIA Very good cut<o:p></o:p>

Polish: Very Good<o:p></o:p>

Symmetry: Excellent<o:p></o:p>

Depth: 62.3%<o:p></o:p>

Table: 58%<o:p></o:p>

Crown Angle: 34<o:p></o:p>

Pavilion angle: 40.8<o:p></o:p>

Girdle: medium to thick, faceted<o:p></o:p>

Culet: none<o:p></o:p>

HCA rating: 1.3<o:p></o:p>

Price: $4842<o:p></o:p>

<o:p> </o:p>

Stone 8<o:p></o:p>

0.96 carat<o:p></o:p>

H-color<o:p></o:p>

SI1<o:p></o:p>

GIA Very good cut<o:p></o:p>

Polish: Very Good<o:p></o:p>

Symmetry: Excellent<o:p></o:p>

Depth: 58.3%<o:p></o:p>

Table: 60%<o:p></o:p>

Crown Angle: 32.5<o:p></o:p>

Pavilion angle: 40.6<o:p></o:p>

Girdle: thin to medium, faceted<o:p></o:p>

Culet: none<o:p></o:p>

HCA rating: 1.5<o:p></o:p>

Price: $4200

bucklwi1 · Jun 14, 2008

wow! I am sorry. I am trying to edit the 1st post so it isn''t so huge, but no matter what I do when I re-submit it, it goes back to this gigantic long text. I apologize. Can someone tell me how to make things smaller?

JulieN · Jun 14, 2008

Is this for a ring?

1, 4, 5.

Stone 6...the thick girdle gets docked on the GIA system, as well as the 40.4 PA.

bucklwi1 · Jun 14, 2008

yes for a ring

bucklwi1 · Jun 14, 2008

so stone 6 is docked on GIA grading, but is it still as nice as the other diamonds based on the HCS score? will it sparkle as bright, etc?

JulieN · Jun 14, 2008

HCA allows for many, many different looks.

The very thick girdle concerns me, as you are probably losing quite a bit of spread there...

bucklwi1 · Jun 14, 2008

OK, but 1, 4, and 5 all sound like nice diamonds??

would you rank them in that order?

JulieN · Jun 14, 2008

1, 4, 5, are the ones I'd start working with, such as getting pictures, IS, check if eye-clean.

Not enough info to rank.

bucklwi1 · Jun 14, 2008

what is IS?

JulieN · Jun 14, 2008

Ideal Scope

bucklwi1 · Jun 14, 2008

can I plug the dimensions into a calculator myself online? If so, where can I find it.

or is that something that needs to be done by a jeweler?

JulieN · Jun 14, 2008

there is only HCA...what other calculator do you mean?

bucklwi1 · Jun 14, 2008

sorry, what I meant was, is the IS an online tool that I can do myself using the diamond dimensions.

I guess from your answer that it is not, so should I ask the seller if they can get me an IS picture?

JulieN · Jun 14, 2008

You should ask for a picture.

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