Help with purchasing a princess cut...dimensions included

[azazel1982]

The following info is from the GIA certificate:

Modified square brilliant
1.20 carat
F color
VS1 clarity
Polish - excellent
Symmetry - excellent
5.72x5.69x4.27
66% table
75% depth
Girdle thickness: Medium to slightly thick

The following info is from an independant diamond wholesaler in australia. In other words, these are their own measurements:

Crown angle 47.1 degrees
Crown height 16.4%
Pavillion Angle 38.4 degrees
Pavillion Depth 56.0%
Table Size 65.8%
Girdle thickness 2.3%
Total depth 74.7%, 4.27mm

Hopefully the aset picture is attached. The aset picture is also done privately at the wholesaler.

No AGS certificate is available.

The jeweller told me the light return was 96.6% with an intensity of 60%.

In your opinion, what grading would AGS give this diamond???

From what ive read AGS-0 is the best/better cut princess diamond available. In australia very few jewellers offer AGS certificate with their diamonds therefore its hard to find an AGS-0 princess cut. In fact, in all my searches, ive found none.

 

[stone-cold11]

Have you tried http://www.jogiadiamonds.com.au/. They carry some AGS0 princess.

 

[azazel1982]

I have looked there.

But they only stock AGS-0 princess cut upto 1 carat. I was hoping for 1.2ish.

 

[Lorelei]

Date: 1/27/2009 9:34:21 AM
Author: azazel1982
I have looked there.

But they only stock AGS-0 princess cut upto 1 carat. I was hoping for 1.2ish.

Welcome!

Unless you particularly want an AGS0 cut grade Princess there are well cut GIA graded Princess to be found if you work with a trusted vendor who has the cut analysis and images available on the diamond. The ASET of the diamond you posted looks like a good image, do you have the actual diamond images of this rock?

If you prefer to buy in Australia then you could also try Garry at www.hollowaydiamonds.com.au Garry is located in Melbourne, I don't know if that is anywhere near you but I thought it would be worth suggesting.

 

[stone-cold11]

I am assuming that stone you presented is from them too, similar image setup. Looks a little off for the ASET.

Maybe try calling and working with them to source for you a better stone? The owner of jogiadiamonds sometimes posts here too and so far good things were heard from those that bought from them.

 

[azazel1982]

actual image should be attached.

Your very clever stone-cold. It is from them.

Around Perth they are the best priced jeweller ive found.

But im very keen on getting an ideal cut princess around 1.2 carats. The only way a lay person can determine an ideal cut is through a grading system such as AGS. From what ive read over the last 2 weeks, AGS seem the best with regards to determining cut quality.

AGS is fairly well respected world wide so im trying to find an AGS-0 cut princess around 1.2. In australia that seems very difficult.

 

[Lorelei]

Date: 1/27/2009 9:45:38 AM
Author: Stone-cold11
I am assuming that stone you presented is from them too, similar image setup. Looks a little off for the ASET.

Maybe try calling and working with them to source for you a better stone? The owner of jogiadiamonds sometimes posts here too and so far good things were heard from those that bought from them.

It isn't a perfect ASET but it certainly isn't a bad one - I have seen far worse than that and I wouldn't write it off just yet. The photo of the diamond looks good - the bottom line is if you want an AGS0 Princess then carry on looking, if you want what appears to be well cut Princess or what is called a ' fine make' of diamond then this one might fit the bill, it depends on your priorities.

 

[stone-cold11]

Date: 1/27/2009 9:54:29 AM
Author: Lorelei

Date: 1/27/2009 9:45:38 AM
Author: Stone-cold11
I am assuming that stone you presented is from them too, similar image setup. Looks a little off for the ASET.

Maybe try calling and working with them to source for you a better stone? The owner of jogiadiamonds sometimes posts here too and so far good things were heard from those that bought from them.

It isn''t a perfect ASET but it certainly isn''t a bad one - I have seen far worse than that and I wouldn''t write it off just yet.

Agreed, just that their crossfire ASET are so well taken I assume that this image''s leakage is due to the stone''s cutting and not a photo artifact. Anyway check with them to see if they can get you a better stone or AGS0 for your budget, no harm asking.

 

[azazel1982]

what does an ideal/perfect aset look like in princess cut?

 

[stone-cold11]

check out their crossfire stones.

ASET reference chart

 

[Lorelei]

Date: 1/27/2009 10:00:57 AM
Author: Stone-cold11

Date: 1/27/2009 9:54:29 AM
Author: Lorelei

Date: 1/27/2009 9:45:38 AM
Author: Stone-cold11
I am assuming that stone you presented is from them too, similar image setup. Looks a little off for the ASET.

Maybe try calling and working with them to source for you a better stone? The owner of jogiadiamonds sometimes posts here too and so far good things were heard from those that bought from them.

It isn't a perfect ASET but it certainly isn't a bad one - I have seen far worse than that and I wouldn't write it off just yet.

Agreed, just that their crossfire ASET are so well taken I assume that this image's leakage is due to the stone's cutting and not a photo artifact. Anyway check with them to see if they can get you a better stone or AGS0 for your budget, no harm asking.

The thing is, that even if there was a small amount of leakage present, it might not be visible to the human eye and it is still a decent diamond and worth considering unless the poster wants an AGS0 specifically. An even with AGS0 it is best not to assume anything but to check each diamond carefully for desirable visual properties.

 

[azazel1982]

So im guessing the thing thats wrong with the ASET image above is the ''bottom triangle'' part. Not sure how else to describe it.

Needs to be red, but its blue/green/black in parts.

 

[Lorelei]

Date: 1/27/2009 10:30:09 AM
Author: azazel1982
So im guessing the thing thats wrong with the ASET image above is the 'bottom triangle' part. Not sure how else to describe it.

Needs to be red, but its blue/green/black in parts.

There isn't any thing wrong with it, it is a good image - not super perfect but good. Red is direct light return ( highly desirable), green is reflected light ( less desirable but still ok) and blue is contrast and relates to obstructed light in the ASET. Ideally you want a good amount of red which is distributed throughout the diamond, in other words a balance of red and green in fancy shapes and minimal blue. Here is more info.

https://www.pricescope.com/community/threads/why-we-prefer-aset-to-ideal-scope-with-fancy-shapes.73949/

http://www.highperformancediamonds.com/index.php?page=education-performance

RED is Direct Light (drawn from 45-75 degrees). Red will be the most intense. It comes directly from the source.

GREEN is Reflected Light (drawn from 0-45 degrees). Green has less intensity. It is light reflected from walls, the environment, etc.

BLUE represents light Obscured by the observer (your head blocks this light from reaching the diamond). These areas will light up when the diamond is tilted and other areas will become shaded.

WHITE (if the diamond is backlit, as above) or BLACK (if not) is Leakage. These areas show where pavilion facets are acting as windows rather than mirrors. You see white because those windows allow you to look through the diamond and see the light underneath. White should be minimized.

 

[stone-cold11]

Yes, that''s how I see it,

The black is light leakage, and the blue is head shadow zone, so my read is that in that quadrant there is some leakage. Might or might not be noticeable in real life as this is a at least 20X photo shoot.