Leila
Brilliant_Rock
- Joined
- Jul 23, 2004
- Messages
- 608
Nothing gets by you, does it Mara? Yes, these are idealscopes of my old and new diamond. I notice differences between how they look and am surprised since their idealscopes are quite similar. I don''t want to say too much yet since I want some opinions on them first. They are both beautiful though.Date: 12/17/2005 5:18:55 PM
Author: Mara
Leila, are these the LS''s of your two stones, the 1.49 and then this 2c new one? Do you see performance differences in the new 2c stone vs the 1.49? Interested to hear what you say because the two LS''s look very nice...!!
Hmmm... Okay, I''m off to check if I have info on the lower girdle facets.Date: 12/17/2005 5:36:46 PM
Author: Mara
I thought so! I also notice differences between my old 1.29c stone and this 1.60c stone whereas to me the two idealscopes look pretty darn similar, the specs are almost spot on the same as well. The 1.60c is just a better looking stone to me. I couldn''t explain how. When I was at WF I think I mentioned this and they told me that it was the lower girdle facets that made the difference.
Interesting input Mr. G.Date: 12/17/2005 7:02:10 PM
Author: Mr. Gemologist
The hearts and arrows scope I use polarizes the light. Like reversing the images on a photograph. It shades the 'heart' facets in the face up position, and the 'arrow' facets in the pavillion up position.
I used them frequently when I worked in the lab for certain reports. As for the GIA VG to EX symmery, it is in my experience that most VG's and all EX's get hearts and arrows. Good syms don't line up to get the arrow effect.
Remember, the pavillion main's and the bezel facet points HAVE TO meet.
I just sent Jonathan a PM asking him if he could share his thoughts on this. I don''t have much info on the first stone either. So hopefully he''ll chime in and then I''ll share with ya what I think.Date: 12/17/2005 7:05:18 PM
Author: Mara
Possibly Leila, maybe you can ask Rhino privately what his thoughts are on the two stones and then let us know what the thoughts are? I am dying to know...!! Also want to know your thoughts on how the diamonds perform differently.
Date: 12/20/2005 3:20:35 PM
Author: Leila
I got the lgf info from Jonathan but hopefully he will add his input soon. The difference I see is in scintillation. I wonder if the pavilion angle has to do with this. Any other thoughts?
Date: 12/17/2005 6:20:56 PM
Author: belle
the lgf''s on those are quite similar and wouldn''t contribute to any visual differences. one noteworthy difference is that the second one is cut with more contrast leakage. do you notice a difference in scintillation? another difference could be in the crown/pavilion relationship.
Date: 12/17/2005 7:02:10 PM
Author: Mr. Gemologist
I used them frequently when I worked in the lab for certain reports. As for the GIA VG to EX symmetry, it is in my experience that most VG''s and all EX''s get hearts and arrows. Good syms don''t line up to get the arrow effect.
Jonathan, to me it seems like they have different personalities. Maybe the difference is size is throwing me off but to me, the smaller diamond had a lot of smaller flashes, whereas the llarger diamond seems to be throwing less but bigger flashes of light and seems to be more firey. Does the crown angle and pavilion angle on the larger diamond support this?Date: 12/20/2005 4:21:49 PM
Author: Rhino
I think the only difference you would see would be in size. Larger diamonds, because of the larger facets tend to throw off slightly chunkier flashes but the 2 stones are so so similar, that were they the same size would make an awesome matching pair of studs.
Hmm... I''m surprise that it all comes down to size. I don''t think my new diamond is that much bigger than my last, only about 0.8 mm in size difference. Thanks for sharing your thoughts.Date: 12/20/2005 5:14:22 PM
Author: Rhino
Na. They are so close. Not enough to make any notable difference. My educated guess would be the differences in size.