- Joined
- Apr 5, 2012
- Messages
- 995
Hi PS'ers
I am in the process of buying this newly cut/ newly certified step cut cushion.
Here is the ASET:
Looks pretty "square" right?
According to the GIA cert dated 1st August 2019, it is a slightly elongated shape with length: 6.84mm x width: 5.66mm x depth: 3.75mm. This gives a ratio of 1.2 !?!?! which can definately look rectangular (I know because I have an EC with this ratio) But the images do not suggest an elongated shape at all.
I thought that maybe the wrong images had been paired with the wrong GIA cert, but when I looked at highly magnified images of the stone from the side view I could that the GIA number lasered onto the girdle matches the number on the GIA cert, so apparently the images and the certificate or both the same stone.
How can this be? Is there an optical illusion going on here?
I have heard that AGS measures some squarer fancy shapes from corner to corner as one of their dimensions (which would give a bigger measurement than length or width) but according to the GIA website this is how GIA measure:
"MEASUREMENTS:
Described in millimeters to two decimal places, a diamond’s dimensions are listed as “minimum diameter – maximum diameter x depth” for round diamonds and “length x width x depth” for fancy-shaped diamonds."
The vendor doesn't have the diamond in hand so they can't check the diamond's measurements themselves unless I purchase it.
Is it possible that GIA have made a mistake with the measurements of this stone????
Also the diamond is 1.01cts, wouldn't it face up rather large for its size if these dimensions are correct?
Anyone who sees an elongated shape in these images or who has experience of GIA grading of fancies, please let me know your thoughts!
I am in the process of buying this newly cut/ newly certified step cut cushion.
Here is the ASET:
Looks pretty "square" right?
According to the GIA cert dated 1st August 2019, it is a slightly elongated shape with length: 6.84mm x width: 5.66mm x depth: 3.75mm. This gives a ratio of 1.2 !?!?! which can definately look rectangular (I know because I have an EC with this ratio) But the images do not suggest an elongated shape at all.
I thought that maybe the wrong images had been paired with the wrong GIA cert, but when I looked at highly magnified images of the stone from the side view I could that the GIA number lasered onto the girdle matches the number on the GIA cert, so apparently the images and the certificate or both the same stone.
How can this be? Is there an optical illusion going on here?
I have heard that AGS measures some squarer fancy shapes from corner to corner as one of their dimensions (which would give a bigger measurement than length or width) but according to the GIA website this is how GIA measure:
"MEASUREMENTS:
Described in millimeters to two decimal places, a diamond’s dimensions are listed as “minimum diameter – maximum diameter x depth” for round diamonds and “length x width x depth” for fancy-shaped diamonds."
The vendor doesn't have the diamond in hand so they can't check the diamond's measurements themselves unless I purchase it.
Is it possible that GIA have made a mistake with the measurements of this stone????
Also the diamond is 1.01cts, wouldn't it face up rather large for its size if these dimensions are correct?
Anyone who sees an elongated shape in these images or who has experience of GIA grading of fancies, please let me know your thoughts!