8 replies to this topic

[lalaji]

I am focusing my search on the VS2 clarity range. However, it seems to me that even within the VS2 range, the result I get can be quite different. There is a stone that I am quite satisfied with its color, cut and size, but then I am not sure if it can be described as an acceptable VS2.

The stone has one cloud, one crsytal and a couple of small needles closed to the center of a 1.5ct diamond. They all located around each other. With a 10X lens, I can see one black dot (which is the crystal) and the two very tiny needle, while the cloud is almost invisible no matter how hard I try detect it.

I wonder if this VS2 is acceptable. Because I can still barely see the dot with naked eyes (after I use the 10x, idetity the dot location and remove the lens).

WIthin other VS2 that I saw, here are other options, plese comment which on seems better

1) A few bigger transparent crystal near the center
2) One big cloud at the table,
3) 4-5 small black dots all over the diamond
4) A long feather in the middle

thanks

[denverappraiser]

None of thoe sound like the way most people would describe a VS2. Who graded these stones?

[HeartAndStone]

Hi!

Welcome!


Ok, we're wondering about the color, cut and size...
With what you said.. too much inclusion for VS2
and the dot.. I can't even stand to see a dot on my shirt...
I think the best way is to go lower with color, and aim for higher clarity.
I hope you can show us some pictures of that stone...
Keep us posted...

[lalaji]

HeartAndStone, on 01 October 2010 - 09:21 PM, said:

Hi!

Welcome!


Ok, we're wondering about the color, cut and size...
With what you said.. too much inclusion for VS2
and the dot.. I can't even stand to see a dot on my shirt...
I think the best way is to go lower with color, and aim for higher clarity.
I hope you can show us some pictures of that stone...
Keep us posted...

I am not sure if I describe it correctly, please see the two diagram that I found, would you please comment on it?

[denverappraiser]

The plotting diagram is a map drawn by the grader to show the nature and location of the inclusion. It's NOT an illustration of the inclusion(s). The difference is important because there is a tendency to assign value to the amount of ink used and even the color of the ink. This simply doesn't apply and it's reading more into the diagram than is present. It doesn't show how high relief it is or even really how big it is. This is why EVERY GIA and AGSL document includes the statement that you should not rely on the report without consulting a credentialed grader for advice in interpreting it.

Have you seen any of these stones? Has the seller? If so, what did they have to say about them? If not, how did you pick this particular seller? Again I ask, whose grading are you relying on here?

[jan]

lalaji, on 01 October 2010 - 06:42 PM, said:

I am focusing my search on the VS2 clarity range. However, it seems to me that even within the VS2 range, the result I get can be quite different. There is a stone that I am quite satisfied with its color, cut and size, but then I am not sure if it can be described as an acceptable VS2.

The stone has one cloud, one crsytal and a couple of small needles closed to the center of a 1.5ct diamond. They all located around each other. With a 10X lens, I can see one black dot (which is the crystal) and the two very tiny needle, while the cloud is almost invisible no matter how hard I try detect it.

I wonder if this VS2 is acceptable. Because I can still barely see the dot with naked eyes (after I use the 10x, idetity the dot location and remove the lens).

WIthin other VS2 that I saw, here are other options, plese comment which on seems better

1) A few bigger transparent crystal near the center
2) One big cloud at the table,
3) 4-5 small black dots all over the diamond
4) A long feather in the middle

thanks

If you want a totally eye clean stone, and it sounds as if you do, go with at least a VS1 in clarity and up. I've had many people that can detect something in a VS2 graded by GIA and AGS.

[lalaji]

denverappraiser, on 02 October 2010 - 08:23 AM, said:

The plotting diagram is a map drawn by the grader to show the nature and location of the inclusion. It's NOT an illustration of the inclusion(s). The difference is important because there is a tendency to assign value to the amount of ink used and even the color of the ink. This simply doesn't apply and it's reading more into the diagram than is present. It doesn't show how high relief it is or even really how big it is. This is why EVERY GIA and AGSL document includes the statement that you should not rely on the report without consulting a credentialed grader for advice in interpreting it.

Have you seen any of these stones? Has the seller? If so, what did they have to say about them? If not, how did you pick this particular seller? Again I ask, whose grading are you relying on here?

thanks for your advise. The stone is graded by GIA. The crystal is dark and it can be easily found under a 10x. I can even see this crystal with naked eyes after I found it with the 10x.

[lalaji]

denverappraiser, on 02 October 2010 - 08:23 AM, said:

The plotting diagram is a map drawn by the grader to show the nature and location of the inclusion. It's NOT an illustration of the inclusion(s). The difference is important because there is a tendency to assign value to the amount of ink used and even the color of the ink. This simply doesn't apply and it's reading more into the diagram than is present. It doesn't show how high relief it is or even really how big it is. This is why EVERY GIA and AGSL document includes the statement that you should not rely on the report without consulting a credentialed grader for advice in interpreting it.

Have you seen any of these stones? Has the seller? If so, what did they have to say about them? If not, how did you pick this particular seller? Again I ask, whose grading are you relying on here?

Hi, actually I have one more question, with GIA rated this stone as VS2, in case I ask GIA to re-rate it, would that be in any case that GIA lower the clarity grade? I ask this because sometime I can find some SI1 which is even cleaner than VS2! ANy standard for GIA to rate clarity or this is purely subjective?

thanks for your help

[denverappraiser]

lalaji, on 04 October 2010 - 02:39 AM, said:

Hi, actually I have one more question, with GIA rated this stone as VS2, in case I ask GIA to re-rate it, would that be in any case that GIA lower the clarity grade? I ask this because sometime I can find some SI1 which is even cleaner than VS2! ANY standard for GIA to rate clarity or this is purely subjective?

thanks for your help

I haven't seen very many cases where GIA will change their opinion on a stone but they'll be happy to offer an additional inspection for a fee. The more common approach for dealers who disagree with GIA grading is to send it to a different lab and choose the pedigree that produces the most money at the end. I must say, most people who are willing to spring for the fee are hoping for a higher grade as a result.

No, it's not purely subjective and I'm curious what you mean by 'cleaner'. There is a judgment call being made by the graders, and to that extent, yes it's subjective. They're humans and it may be in error, but the grading is being done under lab conditions by multiple folks each of whom see lots and lots of stones each day so the first question is always what are you using as the alternative 'subjective' opinion and is that alternative more or less reliable than the first?

Edited by denverappraiser, 04 October 2010 - 07:50 AM.