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fishdipper

Rough_Rock
Joined
Jun 14, 2009
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hi everyone

i have been researching for a stone both online and in the stores for the last few months have based my criteria on pretty much the 4Cs, polish, symmetry and using a magnifying glass to look for inclusions which are fairly obvious/black etc.

i know for the criteria i am looking for (up to 4.5k for GIA around 0.85 to 0.95, VS1, D-F, VG-EX for clarity, symmetry and polish) people have been saying that VS1 will be eye clean - however i think it would be nice to look at the diamond upclose and not see an unsightly inclusion?

i thought i had picked picked a good one till i chanced upon a couple of websites such as blue nile that had in-house gradings of cuts - some of which contrasted greatly vs the cut grades in the GIA cert. Using the holloway cut advisor it seems that their grading seemed to be based on the same criteria as a diamond with excellent specs as per my criteria had a rating of 5 while another with lesser specs had 0.7 (excellent)

i suppose my Qs are: which is better? and for a diamond of this size would there be a noticeable difference? i enclose the specs here; would appreciate if someone can provide input. thanks alot.

diamond a: 0.86, F, VS1, VG cut, sym EX, polish VG, depth 59.8, table 57, crown 33, pav 40.6, cutlet none.

diamond b: 0.95. F. VS1, EX cut, sym EX, polish VG, depth 62.8, table 54, crown 35.5, pav 41.4, cutlet none.

somehow this post only allows me to upload 1 pic (dia a)? i will try upload dia b in another post. thanks


regards

dia A.JPG
 
dia b

dia b.JPG
 
#a would have some obstruction issue, you can see some blackness at the arrowhead, it means a darkening of the stone if it is looked at too closely.

#b is not good, the pavilion is too steep, too much light leakage.

An Idealscope image for #a would confirm the issue.
 
The first might be ok, ask the vendor's gemologist to check for obstruction - it might be alright but best to check.

Obstruction is where the diamond darkens visibly at close examination from the viewe's head/ body shadow literally obstructing the light to the diamond. If the gemologist says this isn't an issue then fine, the actual image of the diamond looks ok but an Idealscope image would be helpful.

Check out the video lower right of the page, it shows obstruction in action.

http://diamondscope.pricescope.com/


If you aren't familiar with Idealscope, this page explains.

http://www.highperformancediamonds.com/index.php?page=education-performance

Definitely pass on the second diamond, it is what we call a steep deep angled stone and the leakage can be clearly seen.
 
thanks for that insight and links - they were useful and added more dimensions and confusion to my search!

i am now not exactly sure if my initial criteria have been too narrow or perhaps ''incorrect'' in that it doesnt allow me to get the best value. would be glad if anyone is keen to throw in their 2 cents on how i can maybe refine or improve my search. thanks very much.
 
If you go with a reliable vendor, I would look for eye clean SI1''s as well. My SI1 has only crystals which are clear and therefore not visible with the nake eye, from ANY angle...
 
hello all again - i actually tried to get an idealscope from the retailer (JA) for diamond A but was told that none was available - is there any other way i can try to assess this diamond to confirm no obstruction etc? thanks again
 
That is weird. They should be able to get one for you.
 
Date: 6/23/2009 10:07:16 PM
Author: fishdipper
hello all again - i actually tried to get an idealscope from the retailer (JA) for diamond A but was told that none was available - is there any other way i can try to assess this diamond to confirm no obstruction etc? thanks again
Click to expand...
The gemologist Julianna should be familiar with obstruction and can examine the diamond for you, I would ask why you can''t have an IS image for the diamond, this is not usual practise with James Allen so I would be interested to know.
 
I found it strange as well espcially given what i had read from the forums here - i have emailed the person (Darin) who told me that to find out why and will update. thanks
 
Date: 6/24/2009 11:23:27 AM
Author: fishdipper
I found it strange as well espcially given what i had read from the forums here - i have emailed the person (Darin) who told me that to find out why and will update. thanks
Click to expand...
I would be very surprised if this was the case that they won't do them any longer, let us know what they say.
 
well they replied back and apparently it was sold before he could fulfil it - i was surprised as he had mentioned in his initial mail he would hold it once i provided my full name - which i did on the same day. back to the haystack again
7.gif
 
Good luck in your search then.
 
Date: 6/25/2009 12:20:24 AM
Author: fishdipper
well they replied back and apparently it was sold before he could fulfil it - i was surprised as he had mentioned in his initial mail he would hold it once i provided my full name - which i did on the same day. back to the haystack again
7.gif
Click to expand...
Did he say what the situation is with the IS images? Sorry to hear you lost out on the diamond.
5.gif
 
I think they do provide IS images still - they are in the midst of getting some others for me so hopefully those work out.

Thanks Stone Cold - that looks really nice but i think it may be slightly slightly over my budget. im hoping to spend max of 4k for the stone if possible. :)
 
Date: 6/26/2009 4:00:02 PM
Author: fishdipper
I think they do provide IS images still - they are in the midst of getting some others for me so hopefully those work out.

Thanks Stone Cold - that looks really nice but i think it may be slightly slightly over my budget. im hoping to spend max of 4k for the stone if possible. :)
Click to expand...
Thanks for letting us know, post the images when you get them.
 
here are the images for another diamond that i am looking at - this is a VS2. i am suspecting that the inclusion in the middle is not going to be eye clean - will ask and find out. would appreciate opinions on this please. thanks

d c.JPG
 
here is the IS

dia c IS.JPG
 
Date: 6/26/2009 9:08:04 PM
Author: fishdipper
here is the IS
Click to expand...
Not weird, its ok - definitely looks like it has been painted or more, images like this do come up now and then and it could be showing shallow paddles or the image shifted. Also what are the proportions for this one? Be good to see if those are in fact shallow paddles or the image shifting.
 
hi all

thanks for your input - does this mean this is a winner? i am concerned about the inclusion though - if its not eye clean it would be so wasted.


here are the dimensions

6.2 x 6.22 x 3.85

depth 62
table 54
crown angle 16%, 35deg
pavilion angle 43%, 40.8deg
girdle - thin to med faceted 2.5%
 
Should be good.
 
Date: 6/28/2009 8:41:19 PM
Author: fishdipper
hi all

thanks for your input - does this mean this is a winner? i am concerned about the inclusion though - if its not eye clean it would be so wasted.


here are the dimensions

6.2 x 6.22 x 3.85

depth 62
table 54
crown angle 16%, 35deg
pavilion angle 43%, 40.8deg
girdle - thin to med faceted 2.5%
Click to expand...
It could be fine if eyeclean and verified and such by the vendor, it has been brillianteered yes - I would ask for the seller''s gemologist to look at it and see if it is eyeclean and how the diamond looks. It is possible the image shifted a bit when the image was taken, no leakage from the angle combo so it could be a contender.
 
hello again - he got back to me and said that the VS2 is eye clean as certified..I do not have the actual reply as it is in my personal email which i cannot access right now but i will reproduce it later on.

in the meanwhile the initial diamond a which had been ''sold'' mysteriously surfaced again on the website. here is the IS for this - this seems like a good IS too except for abit of leakage at the ends? comments appreciated please! thanks
 
dia A IS

dia ais.JPG
 
hi all - here is the comment provided by the retailer;

''''While there is a minor gray carbon inclusion within the center of the diamond, it cannot be detected without magnification. This diamond will appear completely clean to the naked eye, which is guaranteed by the VS clarity.''''

does anyone have suggestion/opinions as to whether this diamond or the initial diamond a (IS as per prior post) is better? appreciate it. thanks again
 
Do you have the GIA report image for these stones? Or the GIA report numbers?
 
yes i do - 2106133612 (dia a) and 2106302861. thanks Stone Cold.
 
What is the weight for dia_c?

I am really not sure what is going on with these IS images, too much red, either a lot of brillianteering going on or the image is taken wrongly. Which vendor are they from? Sorry, can''t help much.

Hope someone else answer your question.
 
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