Urgent help please- have put diamond on hold

[JennaJ]

Hello,

I''ve posted before about a week ago about a diamond we were interested in purchasing, a long story but the end result was that unfortuntely it sold. We have now put this one on hold - any comments much appreciated please - we don''t get to see this diamond before we buy it, although there is a return policy...

Carat 0.71
Colour F
Clarity VS2
Total Depth 58.60
Pavilion Depth 42.70
Table 57.00
Dimensions 5.87-5.90X3.45
Crown Angle 31.50
Pavilion Angle 40.60
Girdle 1.02
Culet VS
Fluorescence None
Lustre
Polish G
Symmetry VG
Cut ICE Ideal
Cert GIA

thanks!

 

[hoorray]

Interesting stone! It falls outside of the typical ranges -- being more shallow than most ideals, but gets a 1.2 VG X X X BIC on the HCA. I guess that means lots of white sparkle, less fire, and lots of spread -- it should look larger than it's .71ct weight.




Can you get pictures of it -- maybe an idealscope picture? Also, can you have it sent to a local appraiser before purchasing? I tend to think that is always a good idea so that you have an objective intermediary help you view it before money has changed hands.

 

[JennaJ]

thank you for your quick reply.
Unfortunately we are picking up the diamond while on holiday next week so need to make a decision today , and will only be in the country for a few days - time is not on our side! We may be able to get it appraised while in Australia, but maybe not, will definately do so when we get home though (New Zealand). Will see about ideascope picture though...as long it's nice and white, looks big and is sparkly then I'll be a happy girl!

 

[JennaJ]

Oh, and we were also wondering about the girdle measurement - is it very thin? It will be set in a half bezel ring though, so if its on the thin side that shouldn't be too much ofa problem? (as opposed to a prong setting?)

 

[Magnum]

I'm assuming the 1.02 listed next to the girdle is a percentage. If it is, which I'm pretty sure about, it means the girdle is a thin girdle, according to the AGS, which is just fine for a round brilliant cut. You should be able to use any variety of settings, including four prong, six prong, or the half bevel you talked about. You shouldn't have to worry about the durability of a girdle unless it's very thin or extremely thin. Here's how the AGS defines girdle thickness:

AGS
Very thin 0.091 - 0.50%
Thin 0.51 - 1.2%
Medium 1.21 - 1.7%
Slightly thick 1.71 - 2.95%
Thick 2.96 - 4.2%
Very thick 4.21 - 5.7%
Extremely Thick: >= 5.71 %

 

[JennaJ]

Thanks for your help - we've taken a bit of a risk in buying it unseen, but fingers crossed it will be lovely! I am curious as to the wide dimensions, I don't think any of the other stones we were looking at came anywhere near 5.9, even larger 0.75 stones? It came up well on the HCA...

 

[uclaure]

just curious...how much are you paying for the stone if you don't mind sharing. I too am looking at a stone that falls outside of the ags 0 box, which by all means does not mean that it won't be a great perfomer...think outside of the box

 

[JennaJ]

It is approximately $4300 AUS (excluding tax). That is about $5000 NZ, when we were looking over here for the same carat weight, lower colour, similar cut quality it was a minimum $6000NZ, so we are saving a significant amount.

I got a little bit worried when I realised that it was outside AGS "ïdeal" and was only Ice brand Ideal cut, but when it comes down to it, as long as it is big and white and sparkly then I will be happy. That's part of the problem with forums like this, before coming here I would have been happy with anything that looked whitish and biggish, and wouldn't have even know/cared about colour or cut but now that I know a little bit and read about ideal cut diamonds it's stressing me that it may not be "ideal" cut in the true sense of the word. I think I need to get over this....on paper anyway my diamond for my engagement ring is going to be bigger, better quality and hopefully better cut than my future fiance would have ever been able to afford to get in New Zealand - I think it's the whole stress of not being able to see it before buying it, and having to rely on someone else's call on quality (although they would know better than I do...)

 

[Murph]

I've been lurking for a while, but can someone point me in the right direction? What is an ICE IDEAL?

Murph

 

[JennaJ]

As I understand it, it is the ICE diamond brand "good" cut - their interpretation of a diamond that is cut really well, above average. There are normal or average ICE diamonds as well, the Ideal cut ones are supposed to be extra well cut, above average (there is also ICE excellent and ICE Ideal Hearts and Arrows, which is the super-ideal cut - ICE Ideal is between these two)

 

[Murph]

Thanks for the info, but what company cuts these? Do they rate compared to the stones discussed in this forum (GOG,NI,DI,etc...)?

Murph

 

[valeria101]

Hm...

I don't think the respective sellers are also cutters. This is not bad, since I would think it makes less sense to select diamonds cut to make the most of the rough rather than of light

However, I also understand that very brilliant diamodns exist way beyond the AGS0 and H&A realm - at least by HCA philosophy if not an even wider range of proportions.

Do the 'ice deals' follow any parameters for optics ?

 

[JennaJ]

Here is a link from the site that explains a bit:
http://www.diamondexchange.com.au/Ice%20Brand%20Diamonds.htm

But if you look at that link and compare the "ideal" cut with our diamond specs, a few don't match, in particular the crown angle

, so I don't really know why ours is certified as ideal proportions???

Our diamond has a GIA certificate as well as a certificate from IceStore with the Sarin information (where it states Ideal proportions), so I imagine that it orginally came from IceStore...

 

[valeria101]

There are lots of opinions on what the "ideal" range is. With no general rule in place, each seller can have one definition of "ideal", and they do!

However, if these definitions are made with the purpose to tell apart some particularly brilliant diamonds from the rest, the opinions cannot vary tooo much, because there is some law of phisics bringing all these rules of thumb home. Behind the "ideal cut" there is a mathematical model and a relation between crown and pavilion angles. HCA works on this principle... and ca well encompass all the definitions of "ideal cut" for rounds as long as based on a range of crown and pavilion angles. You can compare them this way...