Question for Experts

[pyramid]

http://www.goodoldgold.com/diamond/3314/


could some of the experts chime in:

Are 34/41 cuts less expensive at wholesale level than 34.8/40.8, to the industry?

Is EX VG VG (VG) okay on HCA?

Gemex can give very high for Fire and Scintillation on same stone where HCA gives VG instead of Excellent so which one is right? Is Gemex very high the same as VG OR EX (I know different companies so probably can''t really compare two)?

Would I see any shadow or a difference under the table to the naked eye due to different angles combination of 34/41 and 34.8/40.8?

A stone is an AGS Ideal Cut - but does the industry as a whole have different preferences within that cut (excluding steep deep thing), what is seen as the best not just in Pricescope?

would I notice a difference in looking at the stone from the side with the naked eye from a 34.8/40.8 proportion, would it look shallower on top and deeper in the bottom?

Is it silly to debate about less than a degree?

 

[strmrdr]

Date: 7/8/2007 9:39:14 AM
Author:Pyramid
http://www.goodoldgold.com/diamond/3314/


could some of the experts chime in:

Are 34/41 cuts less expensive at wholesale level than 34.8/40.8, to the industry?

Is EX VG VG (VG) okay on HCA?

Gemex can give very high for Fire and Scintillation on same stone where HCA gives VG instead of Excellent so which one is right? Is Gemex very high the same as VG OR EX (I know different companies so probably can''t really compare two)?

Would I see any shadow or a difference under the table to the naked eye due to different angles combination of 34/41 and 34.8/40.8?

A stone is an AGS Ideal Cut - but does the industry as a whole have different preferences within that cut (excluding steep deep thing), what is seen as the best not just in Pricescope?

would I notice a difference in looking at the stone from the side with the naked eye from a 34.8/40.8 proportion, would it look shallower on top and deeper in the bottom?

Is it silly to debate about less than a degree?

1: the vendors cant comment on another''s stone.

2: no there is no price difference both are top of the line combos when everything else is right.

3: the ex/vg stuff on the hca is meaningless because it does not take the minor facets into account. The number score showing the c/p combo works is the meat of the hca.

4: the 2 combos do have slightly different personalities(depending on lgf%), i prefer the 34/41 look, but done right one isn''t to a large degree better than the other.

Less than a degree can be very meaningful or not depending on what the combo is.

The 34/41 vs 34.8/40.8 combos iv seen in person and compared I could see a difference and preferred the 34/41 but the lgf% plays a big role here too when comparing small differences.

 

[belle]

Date: 7/8/2007 9:39:14 AM
Author:Pyramid
http://www.goodoldgold.com/diamond/3314/


could some of the experts chime in:

Are 34/41 cuts less expensive at wholesale level than 34.8/40.8, to the industry?

i do not believe so, but someone in the industry can give an answer

Is EX VG VG (VG) okay on HCA?

of course it is. hca is just a *predictor* of performance. hypothetically looking at several diamonds, you would use hca to narrow down which are potentially good performers based on the numbers. you would need more information to determine whether or not one might be better than another however, since it is just a prediction.

Gemex can give very high for Fire and Scintillation on same stone where HCA gives VG instead of Excellent so which one is right? Is Gemex very high the same as VG OR EX (I know different companies so probably can''t really compare two)?

you can''t compare the two systems. again, hca gives a prediction of performance based on user input of information. the accuracy of the results are still limited by several factors. the main one being that the diamond itself is not being analyzed. this is important because there are other factors (lgf & star size, optical symmetry) that have an impact on the overall performance of a diamond.
as for gemex, there is plenty of controversy about the accuracy and results of that system and i don''t want to get in an agruement about that again here. suffice it to say, you can''t compare the two. there is no ''right''. your eye may not agree with the results of either, so you just have to take all of the information and make an intelligent decision. or just toss a coin.

Would I see any shadow or a difference under the table to the naked eye due to different angles combination of 34/41 and 34.8/40.8?

maybe....maybe not. really, you should compare them in person and see what YOU think.
(can you tell i''m over the hairsplitting computer overanalyzing arguements of diamonds that haven''t been seen in person?

)

A stone is an AGS Ideal Cut - but does the industry as a whole have different preferences within that cut (excluding steep deep thing), what is seen as the best not just in Pricescope?

again, i''ll let someone in the industry answer.

would I notice a difference in looking at the stone from the side with the naked eye from a 34.8/40.8 proportion, would it look shallower on top and deeper in the bottom?

no. that is why we have these super duper scanner machines. your eye is not going to see those incremental differences in proportion.

Is it silly to debate about less than a degree?

can you guess my answer at this point?

 

[Ellen]

Date: 7/8/2007 10:27:16 AM
Author: strmrdr
1: the vendors cant comment on another''s stone.

strm, I know they can''t comment on a specific stone, but some of these questions are just in general, can they not address those? and I was also thinking appraisors could weigh in....

 

[strmrdr]

Date: 7/8/2007 10:46:12 AM
Author: Ellen

Date: 7/8/2007 10:27:16 AM
Author: strmrdr
1: the vendors cant comment on another''s stone.

strm, I know they can''t comment on a specific stone, but some of these questions are just in general, can they not address those? and I was also thinking appraisors could weigh in....

would be over the line, ask in general questions about none specific diamonds,,,
yes appraisers could weigh in but they are on vacation.

 

[Ellen]

Oh, ok. Thanks.

 

[pyramid]

Thank you to everyone who replied here.