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Help!!! explain ratings on cut class tool

M

Mainer

Rough_Rock
Joined
Jan 30, 2014
Messages
49
OK I've figured out how to use the cut class tool but I don't know what the results mean.



1234345567
Length:6.79
Width:6.76
Depth:4.08
Total Depth:60.22%
Table percent:59.8
Crown height:13.4
Girdle (from):Thin
Girdle (to):Slightly thick
Polish:Excellent / Very Good
Symmetry:Excellent / Very Good
Crown angle:33.7
Pavilion depth:79

Tab Percent: 1B
Crown Angle: 1B
Crown Height: 2A
Pavilion Depth: 4B
Girdle: 1B
Depth: 1A
Polish: 1A
Symmetry: 1A
TotalGrade: 4A

Is a total grade of 4A good, bad, indifferent? Is a one better than a 2? Or is a higher number desirable. HELP
 
Do you have a picture?
 
diamond
 
I added a link to the diamond. Will that help?
 
This one is bigger, but it is also $1000 more than the 1.10 in your other thread. I still like the 1.10. This one is not a bad choice, but if size is your concern you can start dropping the clarity.
 
HCA score is 1.6. Maybe the AGA/NAGA system does not like the crown / pavilion angle combo? It seems like the pavilion depth is what gets dinged the most. This diamond is a 60/60 diamond, btw. But the AGSL analyses seem to like it ,and it doesn't lack fire per them. I'll let the more knowledgeable people comment further.

_14433.jpg
 
TC1987|1391308189|3606153 said:
HCA score is 1.6. Maybe the AGA/NAGA system does not like the crown / pavilion angle combo? It seems like the pavilion depth is what gets dinged the most. This diamond is a 60/60 diamond, btw. But the AGSL analyses seem to like it ,and it doesn't lack fire per them. I'll let the more knowledgeable people comment further.
Click to expand...

It is one of those diamonds that some do not like, a 60/60 old school kind of cut, I like these, I have one, and love it. You get a nice spread/size for the weight.

It is an AGSL Ideal cut, should be a very bright stone. I would suggest you compare it to a more conventional AGSL Ideal, you will see a different light return, see which you like the best.
 
OK all those suggestions are good ones and I'm learning a bit more each time you help but what do the numbers actually mean on the cut class. The A and the B what do they stand for? The numbers; i'm clueless. I think 1 is better than 2 but then the total grading is a 4A and I have no ideal whether this is a total of all the A's or is a grade number in itself.
 
They don't mean anything once you have a picture. The AGA cut class is a very old fashioned form of trying to grade cut. The HCA has some improvements over AGA, so it will be better to use HCA if you ONLY have numbers. However once you have a picture of some kind all the numbers-only methods take a backseat.
 
Ame; I am going with this vendor because they are the only ones that have the setting I want. I think it maybe I should keep the purchase of both diamond and setting with one vendor.
 
To Julie N. I don't know what to look for in a picture. Which pictures are most useful the computer generated ones or the 10x mag of the actual diamond.
 
Mainer|1391309880|3606171 said:
Ame; I am going with this vendor because they are the only ones that have the setting I want. I think it maybe I should keep the purchase of both diamond and setting with one vendor.
Click to expand...
Ok. That's fine.

I say 1.10. It's the best I've seen in the selection and range.
 
You can get a Ritani setting from any Ritani dealer, you are not limited to Ritani's diamonds. I know Whiteflash is one.

I prefer a a scan-generated ASET over no ASET. Any information you can get are just pieces of the puzzle.
 
JulieN|1391310776|3606181 said:
You can get a Ritani setting from any Ritani dealer, you are not limited to Ritani's diamonds. I know Whiteflash is one.

I prefer a a scan-generated ASET over no ASET. Any information you can get are just pieces of the puzzle.
Click to expand...
So is GOG.

Worth thinking about. We've mentioned two Ritani dealers that will allow a greater selection. What is your FINAL budget? Perhaps contact both GOG and WF and get a price on that setting, and see what they have in your diamond budget after seeing the price on the setting?
 
How are Good Old Gold and White Flash related to Ritani? Do they carry Ritani products? I'm assuming that you think they have a better selection of diamonds.

There is so much to learn I may be 80 before I own an engagement ring.

Budget is flexible-ish.
 
They are Ritani retailers.

Compared to the 1.14 I VS1 you posted, I think you can get better diamonds/better pricing from GOG or WF.
 
Mainer|1391305434|3606101 said:
OK I've figured out how to use the cut class tool but I don't know what the results mean.



1234345567
Length:6.79
Width:6.76
Depth:4.08
Total Depth:60.22%
Table percent:59.8
Crown height:13.4
Girdle (from):Thin
Girdle (to):Slightly thick
Polish:Excellent / Very Good
Symmetry:Excellent / Very Good
Crown angle:33.7
Pavilion depth:79 is not correct the 79 is the lower halve %. The pavilion depth is 43.3%

Tab Percent: 1B
Crown Angle: 1B
Crown Height: 2A
Pavilion Depth: 4B
Girdle: 1B
Depth: 1A
Polish: 1A
Symmetry: 1A
TotalGrade: 4A

Is a total grade of 4A good, bad, indifferent? Is a one better than a 2? Or is a higher number desirable. HELP
Click to expand...
 
I would definitely look at WF and GOG (in-stock stones) to give you a wider selection of diamonds. They also offer images of the stones, idealscope images, etc.
 
I think a poster (smiligan) had previously said that GOG no longer carries Ritani, so I would check with them. I believe your options would then be whiteflash and Pearlmans
 
Thanks so much for correcting that. The cut class seems to give much better results of accurate information. Funny how that works. Again thanks for taking the time to help a newbie.
 
Mainer|1391372281|3606575 said:
Thanks so much for correcting that. The cut class seems to give much better results of accurate information. Funny how that works. Again thanks for taking the time to help a newbie.
Click to expand...

I have used the AGA Cut Class on several of the stones that I own...in most cases if you have a AGSL Ideal cut it will score a 1A-2B range, and for reasons I do not know getting a AGSL Ideal in the 4 range, my guess is the same as someone had mentioned, the crown may be the reason for the poor score, however it is just like all the other tools you have available to you, using just one may not be the true story of any stone. AGSL are graded based on light performance, an Ideal should be a great diamond.

I would recommend that when one is looking for a diamond to use all the tools that are available, picture images, Ideascope, ASET, lab report, talk with the vendor, ask questions, and last but not least your own eyes.
 
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