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Another beginner post (Advice on Diamond)

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stall

Rough_Rock
Joined
Dec 18, 2008
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Hello all,

Can I have some advice on a diamond please? I have decided to propose next year and I am keen to buy direct from an internet supplier. I am after a smaller diamond and have found one off blue nile in the UK.

carat: 0.42
cut : Ideal
colour: H grade
clarity: VS2
Depth: 61.9%
Table: 57%
Symmetry: Excellent
Polish: Excellent
Fluoresence: None
Culet: None
Girdle: Medium to Slightly thick
Measurements: 4.83 x 4.80 x 2.98 mm

I am looking at £470 not including VAT but I was wondering whether this seems ok for price and whether this could be a nice looking diamond for the price I will be paying. I know blue nile don''t supply crown or pavillion stats but I am unsure of the importance of these anyhow.

I forgot to mention that this is a GIA cert.

Any help would be greatfully received.

:)
 
Date: 12/19/2008 8:13:23 AM
Author:stall
Hello all,

Can I have some advice on a diamond please? I have decided to propose next year and I am keen to buy direct from an internet supplier. I am after a smaller diamond and have found one off blue nile in the UK.

carat: 0.42
cut : Ideal
colour: H grade
clarity: VS2
Depth: 61.9%
Table: 57%
Symmetry: Excellent
Polish: Excellent
Fluoresence: None
Culet: None
Girdle: Medium to Slightly thick
Measurements: 4.83 x 4.80 x 2.98 mm

I am looking at £470 not including VAT but I was wondering whether this seems ok for price and whether this could be a nice looking diamond for the price I will be paying. I know blue nile don't supply crown or pavillion stats but I am unsure of the importance of these anyhow.

I forgot to mention that this is a GIA cert.

Any help would be greatfully received.

:)
Click to expand...
Welcome!

The angles are crucial and we really need them to help you. If there is a link to the grading report and it is a recent one then the angles should be on there, if the report dates to pre Jan 2006 then that info won't be there as GIA have only been grading for cut quality since that time. Do you have the report number, as we could maybe get the info that way?

The diamond has potential from the info supplied but that is about all we can say without the angles.
 
61.9% depth, 57% table, 34° crown angle, 41.2° pavilion angle, HCA 3.1.

Slightly deeper than what we normally like, but still probably looks good.

What is the max budget you can go with excluding VAT, etc...? I will see what I can find. SI1 is a great buy if it is check out eye-clean to your specifications by the vendors.
 
Hi Loreli,

Thanks for the prompt response:

It was post Jan 2006 and I googled where the crown and pavvilion angles were so I have:

crown angle %: 34.0%
pavillion angle % : 41.2%

Does this help at all?

Thanks muchly :)
 
Date: 12/19/2008 8:39:28 AM
Author: stall
Hi Loreli,

Thanks for the prompt response:

It was post Jan 2006 and I googled where the crown and pavvilion angles were so I have:

crown angle %: 34.0%
pavillion angle % : 41.2%

Does this help at all?

Thanks muchly :)
Click to expand...
Most welcome!

It does help yes. The depth is fine, I would rather see the pavilion angle be a little less steep, 41 degrees or below preferably with that crown angle but it still could be an attractive diamond. If you are not in a rush, I would see what else is out there, everything looks good with the diamond, but as a guide if you keep the pavilion around 40.6 to 41 degrees and a crown angle of between 34 and 35 degrees then if you aim for the middle of these ranges given then that should get you a good looking diamond. Without Idealscope images then be cautious at the shallower ends of the angle ranges ( 34/ 40.6) and steeper ends ( 35/ 41) as an Idealscope is needed to prove the angles work well together in these cases particularly.

The diamond in question might be ok but we can't tell without an Idealscope image and BN don't supply those unfortunately.
 
Hey thanks Stone - Cold.

Thats been added in my comparison list.

My budget isn''t large so maybe up to £550. I take it £eye clean" at Sl1 then wouldn''t distract from the beauty?

Cheers
 
Date: 12/19/2008 8:43:12 AM
Author: stall
Hey thanks Stone - Cold.

Thats been added in my comparison list.

My budget isn't large so maybe up to £550. I take it £eye clean' at Sl1 then wouldn't distract from the beauty?

Cheers
Click to expand...
Be very sure to get the BN rep to check any SI1 or SI2 clarity carefully to make sure the diamond is eyeclean to your standards. SI clarities are not created equal. For example if you don't want to see any inclusions from any angle at close scrutiny then make sure to tell your BN contact that.

I think you need to pay VAT of 15% on top of the price of the diamonds.
 
Again thank you all for your advice.

I am in no hurry (although the other half would be if she knew what I was planning!). I will look around a little more armed with more advice from you kind lot.

Cheers

:)
 
Date: 12/19/2008 8:47:13 AM
Author: stall
Again thank you all for your advice.

I am in no hurry (although the other half would be if she knew what I was planning!). I will look around a little more armed with more advice from you kind lot.

Cheers

:)
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Very welcome and Happy Christmas!
emotion-19.gif
Let us know if you need any more help!
 
Actually Ive just found one within my ranges with a HCA of 0.7 - is that quite good?
 
Date: 12/19/2008 10:45:24 AM
Author: stall
Actually Ive just found one within my ranges with a HCA of 0.7 - is that quite good?
Click to expand...
Possibly, do you have the proportions or the link please?
 
I sure do :)

61.6% depth
57% table
35.5° crown angle,
40.5° pavilion angle
H colour
Ideal Cut
SI1 Clarity
 
Date: 12/19/2008 10:52:08 AM
Author: stall
I sure do :)

61.6% depth
57% table
35.5° crown angle,
40.5° pavilion angle
H colour
Ideal Cut
SI1 Clarity
Click to expand...


Thanks! Pavilion angle is shallower than I would want, this may not be a problem in this diamond by causing what we call obstruction ( can look dark at close scrutiny due to head shadow etc) but an Idealscope is needed to check, and BN won't offer them. I would rather see a pavilion angle between 40.6 and 40.8 for this diamond. Generally you have more leeway with the crown angle than the pavilion, I will post some numbers you can use as a guide, that might help.

depth - 60 - 62% - although my personal preference is to allow up to 62.4%
table - 54- 57%
crown angle - 34- 35 degrees
pavilion angle - 40.6- 41 degrees
girdle - avoid extremes, look for thin to slightly thick, thin to medium etc
polish and symmetry - very good and above

note - with crown and pavilion angles at the shallower ends ( CA 34- PA 40.6) and steeper ( CA 35- PA 41) check to make sure these angles complement in that particular diamond - eyeballs, Idealscope, trusted vendor input - check as appropriate.

And from expert John Pollard.

"As the above implies, configurations depend on each other. A little give here can still work with a little take there.

With that said, here's a "Cliff's Notes" for staying near Tolkowsky/ideal angles with GIA reports (their numbers are rounded): A crown angle of 34.0, 34.5 or 35.0 is usually safe with a 40.8 pavilion angle. If pavilion angle = 40.6 lean toward a 34.5-35.0 crown. If pavilion angle = 41 lean toward a 34.0-34.5 crown.





GIA "EX" in cut is great at its heart, but it ranges a bit wider than some people prefer, particularly in deep combinations (pavilion > 41 with crown > 35)."
 
Fantastic!

Looks like I will have my head down over Xmas looking at all sorts of stats.

Thanks a lot for this it is really appreciated :)
 
Date: 12/19/2008 10:59:48 AM
Author: stall
Fantastic!

Looks like I will have my head down over Xmas looking at all sorts of stats.

Thanks a lot for this it is really appreciated :)
Click to expand...
You are most welcome!

You can look for AGS0 cut grade from Blue Nile as they are a fairly reliable bet for cut quality. GIA Excellent cut grade can also be good but you need to evaluate these more carefully as the criteria for this grade is wide and can include some less desirable combos. However the numbers given along with the HCA will help you find the better cut diamonds.
But don't worry as some of us Pricescope veterans like myself will be here over the entire Holiday period and will be able to help you!
35.gif
 
Date: 12/19/2008 12:44:27 PM
Author: stall
Would you be able to take a sneaky look at this for me also?

It is hard to see the report although I think it is a 40.8 degree pavillion which comes out as a 1.2 on the HCA - the only thing is it is a medium fluorescence on a H cut stone...

http://www.bluenile.co.uk/round-diamond-1-carat-or-less-very-good-cut-h-colour-vs2-clarity_LD01328679?__fun_frm=i&filter_id=0
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Glad to!

It looks good, it got the VG cut grade because of the very thin girdle most likely, check with BN as to the very thin part of the girdle, it may be fine if the very thin part is a tiny portion of it but in some cases if the very thin area significantly impacts a wide area of the girdle, it can be a durability issue and make the diamond more prone to chipping. Medium blue fluorescence is a nice addition in an H colour, you may not ever notice it but sometimes you can see a bluish sparkle or glow in some sunlight which some of us particularly enjoy! It is said that it can also help a diamond face up a bit whiter.

If the report scans unclearly on a website, you can check it here.

http://www.gia.edu/reportcheck/

And here are the report details.

http://www.gia.edu/reportcheck/index.cfm?fuseaction=home.showReportVerification&reportno=17149632&weight=0.42

If the girdle checks out ok then this diamond has definite potential as far as I can tell without an Idealscope image.
 
Date: 12/19/2008 12:44:27 PM
Author: stall
Would you be able to take a sneaky look at this for me also?
It is hard to see the report although I think it is a 40.8 degree pavillion which comes out as a 1.2 on the HCA - the only thing is it is a medium fluorescence on a H cut stone...
http://www.bluenile.co.uk/round-diamond-1-carat-or-less-very-good-cut-h-colour-vs2-clarity_LD01328679?__fun_frm=i&filter_id=0
Click to expand...
if you are unsure of the report values use http://www.gia.edu/reportcheck/ to check it. Just need the GIA report number and the weight of the stone.

60.4% depth, 57% table, 34.5° crown angle, 40.8° pavilion angle, HCA 1.2. Looks Good. The only thing to worry about is the very thin girdle, might be a problem. Not sure otherwise what is causing the VG cut grade.

Nothing to worry about on the MB fluor. At most, will give you a very slight blue tinge in the prescense of UV source.
 
Actually I web chatted with them and I gave them my criteria and the guy suggested this one as the other one wasn''t up to scratch with the thinness of the girdle..

Oh Im in a dillema now...should I buy .....!!

You have all been so helpful because I only knew a teeny amount about diamond specs before today..!
 
Date: 12/19/2008 1:30:36 PM
Author: stall
Actually I web chatted with them and I gave them my criteria and the guy suggested this one as the other one wasn't up to scratch with the thinness of the girdle..

Oh Im in a dillema now...should I buy .....!!

You have all been so helpful because I only knew a teeny amount about diamond specs before today..!
Click to expand...
You are most welcome and thanks for your kind words, that is the reason why I have been doing this for such a long time because of appreciative posters like yourself!

What you could do is to ask them to put the diamond on hold for you while you think about it, they will do that for you no problem. Especially now the link has been posted, lurkers can tend to grab recommended diamonds which have been up for discussion at times.
 
Well it is on hold and my girlfriend is about to walk through the door so I trust you will keep the secret to yourselves. ;-)

I have a few days to think about it but thanks again for your help. I may be back soon for settings advice soon...!

Happy Xmas Lorelei and everyone else that contributed to this thread :)
 
Date: 12/19/2008 1:45:55 PM
Author: stall
Well it is on hold and my girlfriend is about to walk through the door so I trust you will keep the secret to yourselves. ;-)

I have a few days to think about it but thanks again for your help. I may be back soon for settings advice soon...!

Happy Xmas Lorelei and everyone else that contributed to this thread :)
Click to expand...
Great stuff!!! Don''t worry, my lips are sealed!
13.gif


Happy Christmas to you too and let us know how you get on and if you decide to purchase the diamond!
 
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