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Need Help selecting stone. GIA .83ct

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donhyunkim

Rough_Rock
Joined
Jul 31, 2014
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i have very little time to decide.

i would like to know if the dimensions of this stone is great and brilliant. I am quite a newbie at this.. but its really between 2 stones at the moment.

http://www.gia.edu/cs/Satellite?reportno=15520903&childpagename=GIA%2FPage%2FReportCheck&pagename=GIA%2FDispatcher&c=Page&cid=1355954554547

on paper how does this stone look?

i seen it in real life beside a .90 ct and they looked similar from the top down. Mainly because this one seems a little top heavy.

can anyone tell me if this is a good buy for roughly $4200 (diamond only)
PROS AND CONS?



Thanks

ROUND BRILLIANT

Measurements 6.11 - 6.15 x 3.65 mm
Carat Weight 0.83 carat
Color Grade F
Clarity Grade VS2
Cut Grade Very Good

PROPORTIONS

Depth 59.5 %
Table 60 %
Crown Angle 35.0°
Crown Height 14.0%
Pavilion Angle 40.6°
Pavilion Depth 43.0%
Star Length 55%
Lower Half 85%
Girdle Thin to Medium, Faceted, 3.0%
Culet None
FINISH

Polish Very Good
Symmetry Very Good
FLUORESCENCE

Fluorescence Strong Blue
CLARITY CHARACTERISTICS

Clarity Characteristics Crystal, Cloud
 
Well, I'm new to this...but...I'll give it a shot with the characteristics I've been using to search:

- HCA of 1.4 w/ vg-ex-ex-ex...so it passes that.
- Have you had it checked to make sure the strong blue fluorescence isn't muddy?
- It's what they call a 60/60 stone, have you researched those and how they differ?
- Do you need to go F? You could get more size by going to G or H and see no difference.
- How impactful are the crystals in it? Can you see them?
 
1. Can you get an idealscope? I really prefer getting an idealscope for 60/60s.
2. Is it eyeclean?
3. Have you checked to make sure it is not over-blue from the fluorescence (hazy or milky)?
4. It's a 60/60, but a good one from the numbers, that usually means they favor white light over colored light return. This one has a nice high crown. I like 60/60's but you should be aware of what you are buying. https://www.pricescope.com/wiki/diamonds/60-60-proportioned-diamond
5. I like F color. You will not see a difference if you go to G. But you will at H. So if this is in budget and you are happy with it, I see no issue with the color.


Optimized. You did a great job!
 
Thank you for your advice, i will definitely look into those points.

well the jeweler informed me that the color has minimal affect on price as the main thing that affects the price is clarity and cut.
she also informed me that from her experience, florescence doesnt matter so much unless you are in a night club/blacklight.

i am not sure what you mean by how impactful the crystals are. I actually had the diamond beside this diamond. which they are trying to sell me on that is a better option. I really really cant decide. I mean from far they look the same to me (with untrained eye) with the obvious fact that the .83ct is obviously noticeably bigger than the .70.

the jewler kept mentioning the .70 should be good enough.. it does have a small bubble in it when i used the magnifier.

The problem is i cannot decide if its worth an extra 1000 to go bigger.. any feedback or advice would help

if you guys had to choose between these two diamonds.. with a 1000 dollars inbetween which would you choose?
they also informed me that GIA usually dont carry and have too many stones they get that are under a carat. and if they were they would all be .70ct as people typically buy either .70 or 1ct. rare inbetween.

Thank You so much

GIA REPORT NUMBER
2156014526

DATE OF ISSUE
4/23/2013
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DIAMOND DOSSIER
ROUND BRILLIANT

Measurements 5.66 - 5.70 x 3.54 mm
Carat Weight 0.70 carat
Color Grade E
Clarity Grade SI2
Cut Grade Excellent
PROPORTIONS

Depth 62.4 %
Table 54 %
Crown Angle 34.5°
Crown Height 15.5%
Pavilion Angle 40.8°
Pavilion Depth 43.0%
Star Length 50%
Lower Half 80%
Girdle Thin to Slightly Thick, Faceted, 4.0%
Culet None
FINISH

Polish Excellent
Symmetry Very Good
FLUORESCENCE

Fluorescence Medium Blue
CLARITY CHARACTERISTICS

Clarity Characteristics Crystal, Feather
INSCRIPTION(S)

GIA 2156014526
 
Here is the picture of the description which shows proportions of the actual diamond.

http://imgur.com/5ANIwkz


I have never heard of 60/60 but i just looked it up now.. it looks like there could be ugly 60/60 too but i dont know how to tell. If anyone can read the proportions and determine if its nice that would be nice.

It looked eye clean to me without looking way too hard. When i used the scope i can see specs but it looked okay to me.. this is someone with an untrained eye. The jeweler was mainly saying they would go with the .70 if they had to choose.
 
Here is a picture of the diamonds in person. I took it with my iphone so it might not be the best. also, it has fingerprints http://imgur.com/8J764qM
 
I stated it above. Yours is not a bad one. It's a good one. An idealscope would confirm that for us.
 
I do not have an ideal scope. Do most jewlers have this? Also. I do read up the warnings on having a milky or opaque diamond due to strong blue florescence. It is usually very Noticible? To be honest most diamonds look the same to me. I mean from the picture I posted it looks clean and not milky right? Thanks again
 
A gemologist would examine any stone with Fluorescence for you to determine if it is over blue (milky/hazy). https://www.pricescope.com/wiki/diamonds/diamond-flourescence

If a stone is negatively impacted you should not buy or keep it. If you don't have a good gemologist or the jeweler you are working with is more used car salesman than is helpful... then you need a good return policy that provides a full refund for at least 7-10 days. And take the stone to a good appraiser.

If you need help finding a good appraiser I can help you with that. Where are yo located?
 
Here's my normal post for newbies. It will answer your question about idealscopes:
The entire purpose of faceting a diamond is to reflect light.
How well or how poorly a diamond does this determines how beautiful it is.
How well a diamond performs is determined by the angles and cutting. This is why we say cut is king.
No other factor: not color, not clarity has as much of an impact on the appearance of a diamond as its cut. An ideal H will out white a poorly cut F. And GIA Ex is not enough. And you must stick to GIA and AGS only. EGL is a bad option: [URL='https://www.pricescope.com/community/threads/egl-certification-are-any-of-them-ok.142863/']https://www.pricescope.com/community/threads/egl-certification-are-any-of-them-ok.142863/[/URL]
So how to we ensure that we have the right angles and cutting to get the light performance we want?
https://www.pricescope.com/wiki/diamonds/diamond-cut
Well one method is to start with a GIA Ex, and then apply the HCA to it. YOU DO NOT USE HCA for AGS0 stones.
https://www.pricescope.com/wiki/diamonds/holloway-cut-advisor
The HCA is a rejection tool. Not a selection tool. It uses 4 data points to make a rudimentary call on how the diamond may perform.
If the diamond passes then you know that you are in the right zone in terms of angles for light performance. Under 2 is a pass. Under 2.5-2.1 is a maybe. 2.6 and over is a no. No score 2 and under is better than any other.
Is that enough? Not really.
So what you need is a way to check actual light performance of your actual stone.
That's what an idealscope image does. https://www.pricescope.com/wiki/diamonds/firescope-idealscope
It shows you how and wear your diamond is reflecting light, how well it is going at it, and where you are losing light return. That is why you won't see us recommending Blue Nile, as they do not provide idealscope images for their diamonds. BGD, James Allen, GOG, HPD, ERD and WF do.

The Idealscope is the 'selection tool'. Not the HCA.
So yes, with a GIA stone you need the idealscope images. Even when shopping in person it is recommended. But most jewelers will not have one, will bad mouth it, or will tell you that you don't need it because they have no idea what it is. You can buy an idealscope yourself and take it in to the jeweler you are working with to check the stones yourself. Or if you have a good return policy (full refund minimum 7 days) then you can buy the idealscope, buy the stone, and do it at home.


Now if you want to skip all that... stick to AGS0 stones and then all you have to do is pick color and clarity and you know you have a great performing diamond. Because AGS has already done the checking for you. That's why they trade at a premium.
 
Hi Don and welcome!

Both diamonds have definite potential. The first has excellent proportions and is as Gypsy mentions, a 60 60 type stone, many like this look, they can be bright looking diamonds. One thing that jumps out at me is that the lower halves are quite long at 85%, this is going to give a ' skinny arrow' look depending on the overall optical precision of the cut which is responsible for any arrow patterning. If you look at a diamond with shorter lower halves compared to one like the above, you may notice that some of the light flashes are going to be sharp and splintery rather than broader flashes which some prefer, it's a matter of taste, I quite like the thin arrow look myself. But I do tend to find that when given a choice, generally 75 - 80% lower halves can be preferred and that might be a safer place to shoot for unless you really like the performance of this diamond.

The second looks good, the medium blue fluorescence should not be having a negative effect on the diamond, this is normally only the case with strong or very strong blue, but make sure the intended wearer is ok with seeing a slight bluish glow in the presence of UV light on occasion. The proportions are also excellent, you would need to check carefully it is eye clean to your standards by inspecting the diamond away from the store lights, inclusions can pop out in some lights more than others.

That's about the extent of what we can tell you without images such as Idealscope and unfortunately, it is rare that a b&m jeweller offers such services. If you decide you would like to explore what's available online, if you give us your budget, we can find some stones that might suit you? Also, if you prefer to stick to colourless diamonds by all means do so, but just to mention you could go to G colour if you wish without visual sacrifice if the cut is good and you aren't colour sensitive.
 
Thank you for all your help. I think i will be going with the .83ct.. i will post pictures after it is completed.

Tomorrow i am going to look at the diamond for the last time before having it set. I will ask the jeweler if they have an idealscope.

Thank you
 
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