Twinning Wisps

[headlight]

Should Twinning Wisps be of concern in a stone that has received the grade of AGS000? Thank you!

 

[SimoneDi]

Depending on the clarify grade. From a personal experience, they can be a concern with SI2 stones, even when AGS and super-ideal.

 

[MissGotRocks]

Years ago I had an SI1 AGS0 diamond with one. It posed no clarity issue in that stone but I would look at them in a case by case basis.

 

[headlight]

@SimoneDi and @MissGotRocks thank you for your responses. Yes, it is an SI2. 0.824cts. Here is the light performance, the plot, and the comments:

 

[MissGotRocks]

They could very well not be visible without magnification. Do you have any images or videos of the diamond? Does the vendor say it is eyeclean?

 

[Garry H (Cut Nut)]

@SimoneDi and @MissGotRocks thank you for your responses. Yes, it is an SI2. 0.824cts. Here is the light performance, the plot, and the comments:

is it fluorescent?

 

[headlight]

is it fluorescent?

Fl negligible.

 

[Garry H (Cut Nut)]

Fl negligible.

should be OK, but would need a person to check who knows what they are doing

 

[headlight]

They could very well not be visible without magnification. Do you have any images or videos of the diamond? Does the vendor say it is eyeclean?

Vendor says eye clean. In the super enlarged image they are visible, however the stone is only 6mm, so I cannot image eye visible IRL (especially with my eyes at this point!). Stone will be used as pair for stud earrings, so viewing not "scrutinized" as would be the case for a ring. Is visible in super enlarged video image for sparkle but not visible in video for brilliance.

 

[Garry H (Cut Nut)]

The issue is transparency not eye visibility.
Labs are harsh on twinning because they examin with backlighting in microscopes and loupes.
from a front lighting perspective they are usually quite invisible.

 

[headlight]

@Garry H (Cut Nut) If the stone has the light performance to be deemed AGS000, wouldn’t that speak for itself?

 

[Garry H (Cut Nut)]

@Garry H (Cut Nut) If the stone has the light performance to be deemed AGS000, wouldn’t that speak for itself?

Absolutely not HeadLight - AGS scan a diamond and build a 3D model and then do ray tracing anaylysis.
A black diamond could have AGS 000 proportions and be black as the ace of spades.

No lab grades transparency. All labs cheat on this topic - they use jargon to halp dealers sell dull diamonds.
Grading based on clouds not shown.
Internal graining
etc

 

[Karl_K]

The biggest issue is that the effect of wisps and clouds is the density of the group.
for example:
A cloud the size of the table with a few hundred pinpoints is going to be fine. One that has 10000 is going to be problem.
Both could have the same clarity grade.
But what is messed up is I have seen the worse cloud have a better clarity grade than a much less dense less visible one because of size.
Any time you get groups of inclusions being lumped together as one clarity item you run into this issue.

Graining is similar in that the listing tells you nothing of how much of an issue it is going to be.

 

[headlight]

Thanks for all your input @Garry H (Cut Nut) and @Karl_K . I guess the only way of knowing, short of taking the vendor’s word, is to see for myself. I would have a good return option, but I hate to go through all that. With that said if, in person, transparency is not an issue, it would be an opportunity for a super ideal of very high color at a good value.

 

[headlight]

Say the stone does have the snow globe effect... how evident is that going to be in a stone of this size (0.824cts, 5.99mm)? It seems to me that it would not - as compared to, for example, a 2ct diamond???

 

[Garry H (Cut Nut)]

Say the stone does have the snow globe effect... how evident is that going to be in a stone of this size (0.24cts, 3.99mm)? It seems to me that it would not - as compared to, for example, a 0.824ct diamond???
Say the stone does have the snow globe effect... how evident is that going to be in a stone of this size (2cts, 8mm)? It seems to me that it would not - as compared to, for example, a 20ct diamond???