Comparing two diamonds

[brellymom]

Thanks to all who helped with the last question. I found two other diamonds that look good (to me anyhow!). I''d sure appreciate the insights of those more knowledgeable (everyone !)

Diamond #1:
Shape: Round
Carat weight: 2.34
Cut: Premium
Color: F
Clarity: VS1
Certificate: GIA
Depth: 60.6%
Table: 59%
Polish: Excellent
Symmetry: Excellent
Girdle: Medium to slightly thick
Culet: None
Fluorescence: None
Measurements: 8.56*8.61*5.20

Diamond #2:
Shape: Round
Carat weight: 2.31
Cut: Ideal
Color: G
Clarity: IF
Certificate: GIA
Depth: 61.7%
Table: 56%
Polish: Excellent
Symmetry: Excellent
Girdle:
Culet: None
Fluorescence: None
Measurements: 8.48*8.46*5.23

Then I had a few questions --
(1) They are both about the same price, though Diamond #1 is slightly higher ($37k range) - is this reasonable? seems to me to be okay based on reviewing the dealers recommended here.
(2) I was surprised that #1 was a bit higher than #2 given that #2 is an IF. From this site, it seems that F vs G isn''t all that different generally, so wouldn''t IF trump VS1? I realize the VS1 is a bit bigger, but still? what''s the price driver in these two options?
(3) they both have about the same HCA scores - I am learning! - the G is 1.2 and the F is 1.3. But do I want to shoot for under 1.0, or are these ok scores all things considered?
(4) and lastly, does anyone have experience with online jewelers - can you negotiate the price? I have a trade in bought elsewhere so that will undoubtedly limit my negotiating leverage, but it''s always good to know if this is okay practice!

Thanks again for any help you can give!!

 

[stone-cold11]

We need the angles that you used as input for the HCA and also the star and lower half numbers.

Price wise, it could be due to when the stone is polished.

 

[brellymom]

The F.VS1
crown angle = 33.5
pavilion angle = 40.8
I think the star length is 80% (height = 50%) and lower half = 43% (if I am reading it correctly)

G.IF
crown angle = 34.5
pavilion angle = 40.8
Star length = 75% (heigh = 55%), lower half = 43%

thanks.

 

[stone-cold11]

Nope, that is the pavilion depth.

Lower half should be around 75-85% usually.

 

[stone-cold11]

From the numbers so far, I prefer the G IF.

 

[Lorelei]

Date: 10/1/2009 10:15:26 AM
Author: brellymom
The F.VS1
crown angle = 33.5
pavilion angle = 40.8
I think the star length is 80% (height = 50%) and lower half = 43% (if I am reading it correctly)

G.IF
crown angle = 34.5
pavilion angle = 40.8
Star length = 75% (heigh = 55%), lower half = 43%

thanks.

With the above I think you will find thats the lower girdle measurement, not the stars. Both diamonds have great potential, can you get an images for these or have you seen them in person? The first one has a slightly larger table than the second diamond, often smaller is preferred but both are very promising. Images are the next step if you can get them if for sale online.

 

[Lorelei]

Date: 10/1/2009 8:34:04

Then I had a few questions --
(1) They are both about the same price, though Diamond #1 is slightly higher ($37k range) - is this reasonable? seems to me to be okay based on reviewing the dealers recommended here. Various factors can influence pricing.
(2) I was surprised that #1 was a bit higher than #2 given that #2 is an IF. From this site, it seems that F vs G isn''t all that different generally, so wouldn''t IF trump VS1? I realize the VS1 is a bit bigger, but still? what''s the price driver in these two options? A colour grade difference can affect price, particularly as F is colourless, G is considered near colourless.
(3) they both have about the same HCA scores - I am learning! - the G is 1.2 and the F is 1.3. But do I want to shoot for under 1.0, or are these ok scores all things considered? Aim to score below 2 then evaluate with images such as ASET or Idealscope, the HCA is used for rejection not selection.
(4) and lastly, does anyone have experience with online jewelers - can you negotiate the price? I have a trade in bought elsewhere so that will undoubtedly limit my negotiating leverage, but it''s always good to know if this is okay practice! Some might price match if the stone is listed with multiple vendors but online sellers operate on pretty slim profit margins so price match and paying by bankwire will get you the best discounts, also mention you are from Pricescope as some vendors give a little discount for this if you pay via bankwire.

Thanks again for any help you can give!!

 

[brellymom]

oh yes, i think you are correct, the star for the G is 55% and the lower %''ags are 43/75 (height, width); the star for the F I guess is 50%, with the lower %''s as 43/80%. Does that make more sense?

And thanks all for the input - sounds like I am on the right track so far!

 

[Lorelei]

Date: 10/1/2009 12:11:35 PM
Author: brellymom
oh yes, i think you are correct, the star for the G is 55% and the lower %''ags are 43/75 (height, width); the star for the F I guess is 50%, with the lower %''s as 43/80%. Does that make more sense?

And thanks all for the input - sounds like I am on the right track so far!

That sounds more like it!

And you are definitely on the right track, both look very promising!