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Can you have a fish eye in a triple excellent GIA stone?

G

goodgal

Rough_Rock
Joined
Jul 13, 2009
Messages
46
1.72 round brilliant

Table is 60%
Depth 59.5%
crown angle 31.5%
pav angle 41.6%
none culet

Don't know how to post a picture but i have one!

GIA>cut grade, polish , symmetry all excellent
 
Why not? :-)
 
Post the GIA report number.
 
From the numbers, not fish eye but leakage problem.
 
GIA 1129610453

I have a pic from the jeweler (on a white background)
If you have e-mail I could send it to you as I don't know how to post a pic on the forum

The jeweler is recommended by Pricescope (prefer not to give name) He has looked at it, says it is eye clean with great sparkle, no cloudiness or blue detected and faces up white maybe a grade better than report. Crown/pavilion angles were on the line of very good /excellent but GIA rated it excellent. Says I will love it yet does it have a fish eye? He says no..The pic shows a slight darkened ring around the pupil of the stone...Would love to show the pic which is why your e-mail would be great!
 
http://www2.gia.edu/%5Fwebapps2/gialaboratory/reportcheckcd/index.cfm?fuseaction=home.showReportVerification&reportno=1129610453&weight=1.72

fish eye - http://hldmc.com/forum/?p=39


fish eye is white, not dark - white and hazy ring around the edge of the table. I have a stone w/ fish eye - pg 2 of this thread, bottom third of the page. Is that what you see? It's devilishly hard to take accurate photos of [URL='https://www.pricescope.com/forum/show-me-the-ring/my-studs-are-growing-up-t165839-30.html']https://www.pricescope.com/forum/show-me-the-ring/my-studs-are-growing-up-t165839-30.html[/URL]
 
goodgal|1320167669|3051757 said:
GIA 1129610453

I have a pic from the jeweler (on a white background)
If you have e-mail I could send it to you as I don't know how to post a pic on the forum

The jeweler is recommended by Pricescope (prefer not to give name) He has looked at it, says it is eye clean with great sparkle, no cloudiness or blue detected and faces up white maybe a grade better than report. Crown/pavilion angles were on the line of very good /excellent but GIA rated it excellent. Says I will love it yet does it have a fish eye? He says no..The pic shows a slight darkened ring around the pupil of the stone...Would love to show the pic which is why your e-mail would be great!
Click to expand...

the slight darkened ring may be leakage? hard to tell without a pic. you can upload directly to the forum, click on the thing that looks like a diamond under insert (at the top)

yssie I just looked at your compilation fisheye pic... :errrr: :knockout:
 
diamond.jpg


Hope this comes through

It is slightly tilted but the jweler says it is a great stone. What is the darkness I am seeing in the pic?
 
Doesn't look like fish eye to me. Just the remainder of the patterning under the table around that giant table reflection (thanks to decently sized table and deep pavilion). The stone is angled in the pic so the patterning isn't centred. I couldn't tell you anything about optical symmetry from that pic.

How are you planning to set the stone? Given the size and thin girdle + super shallow crown combo I would advise against 4-prongs, I think the exposed girdle will be at higher risk of chipping.
 
ask for an IS or ASET image
 
Karl_K|1320172085|3051822 said:
ask for an IS or ASET image
Click to expand...

The jeweler gave me the only pic he could i guess. Before he brought the stone in he said he asked the cutter about it and the cutter said it was a "gorgeous" stone with no neg effect from the florescence. (the biggest concern the jeweler had and initially tried to talk me out of it until he spoke with the cutter) BUT don't all cutters say their stones are gorgeous?? :$$):
 
Yssie|1320170710|3051799 said:
Doesn't look like fish eye to me. Just the remainder of the patterning under the table around that giant table reflection (thanks to decently sized table and deep pavilion). The stone is angled in the pic so the patterning isn't centered. I couldn't tell you anything about optical symmetry from that pic.

How are you planning to set the stone? Given the size and thin girdle + super shallow crown combo I would advise against 4-prongs, I think the exposed girdle will be at higher risk of chipping.
Click to expand...
yep
Good call Yssie!
It is also over obstructed by the camera. Id say about 45+ degrees obstruction.
 
goodgal|1320172336|3051827 said:
Karl_K|1320172085|3051822 said:
ask for an IS or ASET image
Click to expand...

The jeweler gave me the only pic he could i guess. Before he brought the stone in he said he asked the cutter about it and the cutter said it was a "gorgeous" stone with no neg effect from the florescence. (the biggest concern the jeweler had and initially tried to talk me out of it until he spoke with the cutter) BUT don't all cutters say their stones are gorgeous?? :$$):
Click to expand...
It is most likely a bright diamond, however fire and scintillation will be less than a near tolk.
This is one of those diamonds that isn't close to top of line but isn't horrible either.
The spread is nice and these where really popular for a while for that reason.
They have became less popular with the newer gia and ags cut grading.
AGS would likely give it a 1.
 
Should I avoid all thin/med girdle diamonds due to chipping being an issue...knees shaking now! :eek:
 
goodgal|1320173269|3051845 said:
Should I avoid all thin/med girdle diamonds due to chipping being an issue...knees shaking now! :eek:
Click to expand...
only with shallow crowns.
 
goodgal|1320173269|3051845 said:
Should I avoid all thin/med girdle diamonds due to chipping being an issue...knees shaking now! :eek:
Click to expand...

Yeah... problem isn't just the girdle, it's all of it in combination in the one stone.

1. We don't know whether the thin portions of girdle are thin-virtually-verythin or thin-practically-medium, or somewhere in between. Girdle is measured as a percentage of diametre, so in this case it's good that the stone is bigger - 1% might be reported as "thin", but 1% of 7.8mm has more material than 1% of say 5mm...
2. Simplified, total angle of crown and pav is 31.5+41.6 = 73.1deg. In a "Tolk type" like Karl describes it'd be more like 34.5+40.8 = 75.2. They're basically two triangular wedges of very brittle material, but one is thinner with less material to back the edge.
3. Your stone is bigger, given the risk of chipping just because of the numbers it's a bad candidate for a 4prong - not worried about the heft/safety of the prongs, but w/ only four of them there's that much more girdle exposed. W/ a smaller stone the sheer prong thickness and height will mean that if you bang your ring against the door you're that much more likely to whack the prong than the delicate girdle
 

Attachments

This topic is very interesting to me because I have a very similar stone. My 2.01 diamond's numbers are:

Table % 59
Depth % 59.7
Crown height % 13
Crown Angle % 32.5
Pavillion Angle % 41
thin to medium faceted 3%
Pavillion Depth % 43.5
no culet

It is also a GIA triple Ex. Karl K's description of the diamond is very accurate - my diamond is very bright and very sparkly but does not have as much fireworks display of color. It is a beautiful diamond and I like that the spread is a bit bigger. I also see that the diamond is a bit darker than the ideal diamonds I comapred it to. I found that the price was lower because of its near ideal numbers.

I didn't realize that the thin/medium girdle posed a significant chipping risk. My diamond is in a 4 prong setting....should I have it reset? I am not a fan of bezels, but I wear my diamond 24/7....at the gym, showering etc. The only time I take it off is when i am going to do a major chore like gardening or significant cleaning. Sorry to hijack.

Goodgal let me know if you have any questions on my diamond. i would be happy to answer. I love my diamond, but if I had the opportunity to re-purchase and with all the knowledge I have from this forum, I might have selected a different stone.
 
motherof3inct|1320235429|3052424 said:
I didn't realize that the thin/medium girdle posed a significant chipping risk. My diamond is in a 4 prong setting....should I have it reset? I am not a fan of bezels, but I wear my diamond 24/7....at the gym, showering etc. The only time I take it off is when i am going to do a major chore like gardening or significant cleaning. Sorry to hijack.
Click to expand...
Keep it insured just in case.
Any ring should be taken off at the gym, get a heavy chain and wear it around your neck.
 
motherof3inct|1320235429|3052424 said:
This topic is very interesting to me because I have a very similar stone. My 2.01 diamond's numbers are:

Table % 59
Depth % 59.7
Crown height % 13
Crown Angle % 32.5
Pavillion Angle % 41
thin to medium faceted 3%
Pavillion Depth % 43.5
no culet

It is also a GIA triple Ex. Karl K's description of the diamond is very accurate - my diamond is very bright and very sparkly but does not have as much fireworks display of color. It is a beautiful diamond and I like that the spread is a bit bigger. I also see that the diamond is a bit darker than the ideal diamonds I comapred it to. I found that the price was lower because of its near ideal numbers.

I didn't realize that the thin/medium girdle posed a significant chipping risk. My diamond is in a 4 prong setting....should I have it reset? I am not a fan of bezels, but I wear my diamond 24/7....at the gym, showering etc. The only time I take it off is when i am going to do a major chore like gardening or significant cleaning. Sorry to hijack.

Goodgal let me know if you have any questions on my diamond. i would be happy to answer. I love my diamond, but if I had the opportunity to re-purchase and with all the knowledge I have from this forum, I might have selected a different stone.
Click to expand...



Thanks so much for joining the conversation. I never knew about angles being such a big deal til this forum! I always assumed a triple excellent from GIA meant it was an excellent stone. I liked the spreadiness which is why I picked it. The jeweler says it is a bright stone and as I have said previously faces up almost like a 2 carat and because of the strong florescence he said as an I it shows no warmth just a bright white stone (H color)with no haziness or blue/violet detected in different lighting. He stated his cutter said it was a gorgeous stone for whatever that is worth. I was very upfront with the fact I did not want to buy a stone I had to exchange due to haziness, fish eye etc due to the 30 day return policy. It is eye clean. I guess I need reassurance that these numbers still mean it could have the wow factor! Until I read about HCA and steep angles etc, I was satisfied..Knowledge can be a good thing but in this case :shock:
 
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