SI2 clarity due to knot - what do you think?

[jill_s]

So I''m looking into stones for a diamond upgrade. I have found a stone that is near perfect in my opinion, the right size, color, cut, and it even has florescence (a bonus!)...the best part? I really like the price! The only problem is that it''s an SI2 that the vendor has said is not 100% completely eye clean. I have no problems with an SI2 grade, I kind of like the inclusions as I think they''re like birthmarks. I have been assured that the inclusions are white. Based on looking at this clarity plot, what do you think?

I''m particularly concerned about the knot inclusion. What exactly are knots? Do they compromise the stone, especially when it appears that the knot is the primary clarity indicator. I''ve tried to do a little searching here for knots, but I''m not finding a whole lot. Just wanted to get some thoughts from the experts. Thanks!

 

[jill_s]

In case this matters - polish and symmetry are GIA Excellent.

 

[*Danielle*]

You need photos. Really, it needs to speak to you. If you look at it and love it, then buy it. If you don''t, then don''t!

 

[jill_s]

Date: 7/21/2009 11:14:35 PM
Author: *Danielle*
You need photos. Really, it needs to speak to you. If you look at it and love it, then buy it. If you don''t, then don''t!

I know I need photos, the problem is that it''s a virtual stone. That would probably solve my dilemma. How likely is it that the stone will be fine with that knot? Just don''t want to pay to bring it in if the knot is definitely going to pose a problem.

 

[stone-cold11]

From this page. http://www.niceice.com/diamond_clarity_characteristics.htm

a "knot" is an included diamond crystal that extends to the surface of the diamond

Search for knot and a full description is there.

 

[Lorelei]

Knots can be a PITA to diamond cutters as they can be difficult to polish, here is more info.

"A knot in a diamond is a hard spot on the surface caused by twinning. Knots give the diamond cutter and polisher fits because they almost always leave drag lines from them and the knot itself may end up as a rough spot without that nice polish."

They are normally not an issue, for the consumer it seems the main issue is if they are eye visible or not, ask the vendor if this is the case.

 

[FB.]

Looking at the plot of the inclusions, the knot is a large one in full view on the table of the stone. When the seller is saying "not eye clean", I suspect that's an understatement - although if the stone is small it may be eye clean (say under 0.5ct). An inclusion that extends into the surface of the table seems very likely to be highly visible. I am confident that it would drive me nuts looking at it and if it was a gift, the recipient might feel second-class with such an inclusion which would surely be detectable at 8-12 inch distance.
I would also fear that even casual observers may see such an inclusion and ask "is that a chip?".

I wouldn't buy that stone at any price.

 

[jill_s]

Date: 7/22/2009 6:22:33 AM
Author: FB.
Looking at the plot of the inclusions, the knot is a large one in full view on the table of the stone. When the seller is saying 'not eye clean', I suspect that's an understatement - although if the stone is small it may be eye clean (say under 0.5ct). An inclusion that extends into the surface of the table seems very likely to be highly visible. I am confident that it would drive me nuts looking at it and if it was a gift, the recipient might feel second-class with such an inclusion which would surely be detectable at 8-12 inch distance.

I would also fear that even casual observers may see such an inclusion and ask 'is that a chip?'.


I wouldn't buy that stone at any price.

Point taken. I was kind of thinking that but hoping you all would say differently. From what the vendor has said, it appears that this is the inclusion that's making it not eye clean. I'm thinking I may pass...such a bummer. I really liked everything else about the stone. The hunt continues!

 

[stone-cold11]

Good luck.