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Unit_69

Rough_Rock
Joined
Jan 28, 2010
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Hi all

New to the forum, have been doing some searching online and google kept sending me to this site to find out what I needed so thought it good to join up!

Planning on proposing on 12th March to my GF of 6 years. Have placed booked, proposal sorted, little matter of ring now! Looked in some shops, had a look at rings but thinking of ordering certified online now that I know what I am talking about (roughly!).

I am wanting to get a 1 carat, round diamond in a 6 claw tiffany style setting. I have found the ideal setting on a UK website (diamondgeezer.com) and currently trying to find a suitable diamond. After my research I would like a G colour, 1 carat, VS2 clarity and hoping to bring in just under or around £5000 (UK pounds). From their range I think something will have to give in terms of cut, symmetry and polish as I am unable to get excellent in all of them.

So can anyone give any advice on ideal combination of these 3? Is cut more important - so go for excellent/ideal cut and then very good for polish and symmetry. is going down to a good not advisable?

Your help would really be appreciated folks, I thought I was in control but starting to panic a bit now!
 
It will be difficult to see the difference between VG and Ex in symm and polish.

Buy GIA/AGS graded stones to get as other labs can be looser in grading.

Cut, we will need the angles, table size and depth. Preferably with Idealscope image.
 
Date: 1/28/2010 9:08:40 AM
Author:Unit_69
Hi all

New to the forum, have been doing some searching online and google kept sending me to this site to find out what I needed so thought it good to join up!

Planning on proposing on 12th March to my GF of 6 years. Have placed booked, proposal sorted, little matter of ring now! Looked in some shops, had a look at rings but thinking of ordering certified online now that I know what I am talking about (roughly!).

I am wanting to get a 1 carat, round diamond in a 6 claw tiffany style setting. I have found the ideal setting on a UK website (diamondgeezer.com) and currently trying to find a suitable diamond. After my research I would like a G colour, 1 carat, VS2 clarity and hoping to bring in just under or around £5000 (UK pounds). From their range I think something will have to give in terms of cut, symmetry and polish as I am unable to get excellent in all of them.

So can anyone give any advice on ideal combination of these 3? Is cut more important - so go for excellent/ideal cut and then very good for polish and symmetry. is going down to a good not advisable?

Your help would really be appreciated folks, I thought I was in control but starting to panic a bit now!
Click to expand...

Hi the cut IS paramount. You will not be able to differentiate between excellent and very good polish/symmetry. If you get ''good'' polish or symmetry, then for GIA/AGS graded stones the cut grade is automatically penalised 1 grade ie the highest cut grade acheivable would be VG for GIA or Excellent for AGS (not sure about other grading labs)
In my opinion if polsh or symmetry is good but the rest of the parameters woud qualify the stone as excellent/ideal then you would save some money but could still have a potentially excellent stone in terms of performance.
 
Hi Bob
35.gif




Just FYI, GIA will permit stones with VG polish/symm in their EX cut grade. AGS0s must be Id/Id though.
 
excellent, thanks very much everyone for your help so far. So cut is the way to go. The website is not the best compared to others I have seen that allow you to search for the table/depth as well, so have contacted the website asking how I can view this data. They have a link for each diamond to the GIA report, but it is actually only the GIA report check and not the full report
 
Date: 1/28/2010 9:31:21 AM
Author: yssie
Hi Bob
35.gif




Just FYI, GIA will permit stones with VG polish/symm in their EX cut grade. AGS0s must be Id/Id though.
Click to expand...
Thanks Yssie
Indeed so, but I was referring to stones with polish and/or symmetry graded Good (not Very Good)
 
Oh - I misread! My mistake.
 
Here is an idea of what I was looking to purchase from the BlueNile website. The diamonds seem to be cheaper than diamondgeezer slightly and are more trasnparent in allowing you to search through all criteria. If anyone could have a look through that item and give some advice concerning angles/depth/table etc.

http://secure.bluenile.co.uk/basket.jsp?o_action=remove&o_items=7214,LD01642542

Only thing about bluenile is I am unsure of the band, although it is a 6 claw it is slightly different to the tiffany style setting I can get (and maybe prefer) from diamondgeezer (see below)

http://www.diamondgeezer.com/diamond-engagement-rings/viewring.php?sku=01-0100-6159&detectflash=false

Hmm, that is the one thing making me swither
 
Date: 1/28/2010 10:03:05 AM
Author: BobR

Date: 1/28/2010 9:31:21 AM
Author: yssie
Hi Bob
35.gif




Just FYI, GIA will permit stones with VG polish/symm in their EX cut grade. AGS0s must be Id/Id though.
Click to expand...
Thanks Yssie
Indeed so, but I was referring to stones with polish and/or symmetry graded Good (not Very Good)
Click to expand...
Sorry for the threadjack
Yssie just picked up on what you said about AGS
Interestingly I have a download from the AGS website that says (for their proportion based cut grading system) that they apply same rules as GIA on polish/symmetry??) but I don''t have any such guidance for the performance based.so taking what you say as read, I think it''s'' very confusing for poor consumers (or at least for me!!) to try and wade through different rules depending on whether the stone is proportion or performance graded?? Hopefully someone can clarify this??
 
cheers stone-cold, I was already drafting my last reply so didn''t see your info about how to check. Have done that now and the figures gave me a value of 1.9, so just outside the 2 value

This is what gave me that value

62.6% depth, 56% table, 34.5° crown angle, 41° pavilion angle, 0% culet
 
Unit 69
I didn''t say anything before but now you''ve bought comparative price into the equation, have you looked at the US pricescope vendors??
Im in the UK and have recently bought a pendant from the US. Was surprised at how easy it all was. In my view the prices are better ( unless you neeed to ship the item back to the US)
If you do a search on the top of the pricescope page for 1ct GVS2 you''ll see competitively priced stones.
Alternatively I''m sure many Psers can recommend vendors who do the type of settting you''re looking for.

Remember that for imported stones you will have to pay UK VAt and if you have the stone set then you will pay an additional 2.5% duty on the invoice value.
 
Date: 1/28/2010 10:30:18 AM
Author: BobR
Unit 69
I didn''t say anything before but now you''ve bought comparative price into the equation, have you looked at the US pricescope vendors??
Im in the UK and have recently bought a pendant from the US. Was surprised at how easy it all was. In my view the prices are better ( unless you neeed to ship the item back to the US)
If you do a search on the top of the pricescope page for 1ct GVS2 you''ll see competitively priced stones.
Alternatively I''m sure many Psers can recommend vendors who do the type of settting you''re looking for.

Remember that for imported stones you will have to pay UK VAt and if you have the stone set then you will pay an additional 2.5% duty on the invoice value.
Click to expand...
Thanks Bob
Can anyone recommend any vendors that may do a similar setting I am looking for? Tiffany style 6 claw
 
Excel diamonds and Whiteflash both make excellent Tiffany repro settings.

here's the links:



Excel

Whiteflash
 
Date: 1/28/2010 10:21:03 AM
Author: BobR


Date: 1/28/2010 10:03:05 AM
Author: BobR



Date: 1/28/2010 9:31:21 AM
Author: yssie
Hi Bob
35.gif




Just FYI, GIA will permit stones with VG polish/symm in their EX cut grade. AGS0s must be Id/Id though.
Click to expand...
Thanks Yssie
Indeed so, but I was referring to stones with polish and/or symmetry graded Good (not Very Good)
Click to expand...
Sorry for the threadjack
Yssie just picked up on what you said about AGS
Interestingly I have a download from the AGS website that says (for their proportion based cut grading system) that they apply same rules as GIA on polish/symmetry??) but I don't have any such guidance for the performance based.so taking what you say as read, I think it's' very confusing for poor consumers (or at least for me!!) to try and wade through different rules depending on whether the stone is proportion or performance graded?? Hopefully someone can clarify this??
Click to expand...
Stone is always proportion-graded, even for performance. They run scans (sarin/helium) that give diamond proportions, and depending on those proportions assign a cut grade (though ct wt is determined with a scale - checked against a computed wt from the scan to make sure it's not a cz, etc. )

Colour and clarity are viewed by two human observers, and they bring in more as needed.

Polish/symm graded by problems visible under 10x loupe - again, humans are doing it

That's why we have to consider that grade-setting clouds in SIs may affect brilliance - the effects of inclusions is not factored into the final cut grade - it's proportion based (to an extent - they won't give a black diamond a 0!)
 
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