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Questions from a beginner - Pavilion angle / depth

I

idonotmatch

Rough_Rock
Joined
Jun 13, 2018
Messages
18
Hi all - let me preface this by saying, thank you for bearing with me!

I'm on the search for an engagement ring, and came across one in particular that has piqued my interest. It's a CanadaMark diamond and seems to have fit into all my criteria. With that being said, a couple things have me craving additional information. The stated pavilion angle and depth of the diamond are significantly different from anything else I've seen, and was hoping someone could help enlighten me on what the impact is.

Additionally, I've attached the ACET image - and would love to hear any feedback on that as well. Thanks again!

UPDATE: Looks like the website had the angle wrong. The GIA report has it at 41 degrees which makes much more sense!

2799791_2.jpg
 
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That image looks like it has a lot of leakage under the table.

Please post all the angles - it will enable better understanding.

Put the angles into the HCA tool (under the Tools tab at the top of the forum) and let us know what the score is.
 
OoohShiny said:
That image looks like it has a lot of leakage under the table.

Please post all the angles - it will enable better understanding.

Put the angles into the HCA tool (under the Tools tab at the top of the forum) and let us know what the score is.
Click to expand...

Thanks! HCA has it as a 1.9

Unfortunately the only other picture is the one attached:

2799791_1.jpg
 
True. There are couple leaky spots.
The stone is not as bad as how it appears. I do not think it is a well taken ASET photo. The back lighting is too bright and I do not think the ASET scope is held properly.
 
I agree that it is very very brightly lite, but maybe @Karl_K or another PS member can chime in to give us a technical opinion on the lighting intensity. The uniform grey/white below the table is giving me pause.
 
Thanks for the feedback, all. To provide a little more context, the diamond is:

1.8CT / H / IF / GIA Ex at roughly $18K. I'm assuming that I'm looking at a slight premium for the Canada Mark, but wondering if the price is fair. I understand I could sacrifice on clarity, but in the scope of this particular diamond - any feedback on what else I should be considering?
 
It's leaky diamond to me.. 41 pav angle base on the ASet I can guess the Crown Angle around 36 to 36.5 ..
Would you mind to share the certificate or the GIA number. :mrgreen2:

idonotmatch said:
Hi all - let me preface this by saying, thank you for bearing with me!

I'm on the search for an engagement ring, and came across one in particular that has piqued my interest. It's a CanadaMark diamond and seems to have fit into all my criteria. With that being said, a couple things have me craving additional information. The stated pavilion angle and depth of the diamond are significantly different from anything else I've seen, and was hoping someone could help enlighten me on what the impact is.

Additionally, I've attached the ACET image - and would love to hear any feedback on that as well. Thanks again!

UPDATE: Looks like the website had the angle wrong. The GIA report has it at 41 degrees which makes much more sense!

2799791_2.jpg
Click to expand...
 
As requested earlier, please can you post all the angles/measurements?
 
rockysalamander said:
I agree that it is very very brightly lite, but maybe @Karl_K or another PS member can chime in to give us a technical opinion on the lighting intensity. The uniform grey/white below the table is giving me pause.
Click to expand...
ASET is so badly taken it is useless.
I third the call for posting the numbers.
 
You're paying a premium not only for the Canadamark brand, but also for the IF clarity. If you are okay with an H color stone, IF doesn't "add" value. Why not put those premium dollars toward a better cut and drop some in clarity.
 
Adding in the previously requested info:

Weight: 1.8ct
Color: H
Clarity: IF
Cut: Signature Ideal
Measurements: 7.79 - 7.83 x 4.83
Grading Lab: GIA
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Depth: 61.8%
Table: 57%
Crown Angle: 34.5°
Crown Height: 57.0%
Culet: None
L/W Ratio: 1.01

GIA: 2195385614
 
Pavilion angle?
 
Ozzzz..... thanks for the details.
If 41 angle over 34.5 crown, I doubt the aset scope is not matching.. :think:
Are you sure this is the correct stone?

idonotmatch said:
Adding in the previously requested info:

Weight: 1.8ct
Color: H
Clarity: IF
Cut: Signature Ideal
Measurements: 7.79 - 7.83 x 4.83
Grading Lab: GIA
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Depth: 61.8%
Table: 57%
Crown Angle: 34.5°
Crown Height: 57.0%
Culet: None
L/W Ratio: 1.01

GIA: 2195385614
Click to expand...
 
idonotmatch said:
Adding in the previously requested info:

Weight: 1.8ct
Color: H
Clarity: IF
Cut: Signature Ideal
Measurements: 7.79 - 7.83 x 4.83
Grading Lab: GIA
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Depth: 61.8%
Table: 57%
Crown Angle: 34.5°
Crown Height: 57.0%
Culet: None
L/W Ratio: 1.01

GIA: 2195385614
Click to expand...

Just an FYI, the GIA report for this diamond lists it as VS1, not IF.
 
I might be wrong (*awaits correction*) but seems a touch steep deep with a 41/34.5 combo?


EDIT: With remarkable timing, @blueMA posted a link to the AGS Proportions tables just now :)
https://agslab.com/docs/pbcg/AGSLProportionCharts.pdf

Looks like 34.5/41/57 just scrapes into AGS Ideal territory, so all should be fine.
 
Last edited:
Are you looking to buy CanadaMark for ethical reasons?

If you are open to other options, please post your budget and we can help look for options :)
 
Thanks, all!

Canada Mark was less ethical, more geared towards being Canadian.

The budget I was playing with was $13 - $18 with $18 being the upper bound on just the stone. Would love to see additional recommendations!
 
OoohShiny said:
EDIT: With remarkable timing, @blueMA posted a link to the AGS Proportions tables just now :)
https://agslab.com/docs/pbcg/AGSLProportionCharts.pdf
Click to expand...

See attached. Assuming angles are 100% accurate then yes...ideal. However, we know that GIA uses averages and rounding. The box I drew is probably more realistic. With the angles, it has the potential to be excellent to ideal cut.

Agree that ASET looks funky. Any chance to request a new one? I would be quiet and not tell them you think anything is up. Let them catch the mistake, or hang themselves by telling you it's awesome.

Capture.PNG
 
sledge said:
See attached. Assuming angles are 100% accurate then yes...ideal. However, we know that GIA uses averages and rounding. The box I drew is probably more realistic. With the angles, it has the potential to be excellent to ideal cut.

Agree that ASET looks funky. Any chance to request a new one? I would be quiet and not tell them you think anything is up. Let them catch the mistake, or hang themselves by telling you it's awesome.

Capture.PNG
Click to expand...

You have to be careful with a 41 pavillion. A little out of precision, a stone can suffer light leakage or, as we see in this case, clustering at the base of the arrow shafts. I tend to be more lenient with other proportions but with 41, I expect precision cut.
 
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