59% Table

[gardenia]

Hello there,

I am wondering if one of the experts out there can advise me on the specs I have been given on this diamond.

carat: 1.77
color: G
clarity: VS2

diameter:7.84mm
depth: 4.71 (60.1%)
crown: 34.6 (14.1%)
pavil: 40.7 (42.7%)
table: 4.63mm (59%)
culet: 0.9%
girdle: 1.2 thin - 1.9 sl. thick

If the GIA report is also helpful, I can provide that.

Thanks,

another newbie

 

[C Smith]

The GIA report would be helpful. The numbers seem basically okay as-is and arguably equal a Class-1 cut but the .9% culet is interesting to me. I'm not used to seeing it quantified in that manner. Usually it is pointed/none, small, medium, large or shades of those basic grades on reports. Interesting, to me at least. Do you have a polish evaluation?...

 

[gardenia]

Thanks for your reply. The GIA report lists the culet as none.

By saying the numbers are "okay" does that mean average? It seems to come out Excellent in all regards in the HCA.

Thanks so much.

 

[C Smith]

Sorry for not answering thoroughly. I edited my first post to reflect that the stone seems to be a borderline GIA Class-1 and thats okay! I got side-tracked in my initial reply by the unusual culet data

 

[whatmeworry]

Does the GIA report have a cut grade? Polish/Symmetry/Flour.? By the numbers (crown/pavil) it looks really nice.

 

[gardenia]

Thanks to you both for your replies. I truly appreciate your feedback. Attached is the first report I received. The second one is in the next post.
Any thoughts?

 

[gardenia]

GIA certificate is attached.

 

[thecullinan]

Hello gardenia ;

53%-57% table is an ideal cut diamond proportion (just for the table). This diamonds subscribes to the specs of the AGS (0) that assures perfection.

Your diamond is on AGS (1) cut grade. It is table proportions in between 57.6% to 59.5%.

 

[gardenia]

Thank you! Is it okay to discuss prices on this forum? What would an ideal price be for an AGS 1 of this proportion and size?

 

[C Smith]

With very good symmetry and polish, it is a GIA Class 1 in my opinion although the numbers are off Class 1 spec. slightly. The GIA scale allows for a class 1 grade in these sorts of cases at the discretion of the grader. I'd grade it class 1 although it isn't quite textbook. The textbook Class 1 would have a 43 % pavilion but the three-tenths dicrepancy is no huge deal. It papers as a very nice diamond.


It's interesting to see the two reports differing somewhat significantly on objective data such as depth %.

 

[whatmeworry]

Hi Gardenia. Okay you have an old GIA cert. The newer GIA certs grade cut. I plugged your numbers into GIA''s FACETWARE http://www.diamondcut.gia.edu/ using a 50% star and 80% lower half and got a cut grade of EXCELLENT As you said it gets excellent HCA scores and you can see it is on the border of AGS 0 candidates. With AGS new cut grading you really can''t tell if it gets a 0 or 1 because you need to do a 3D scan of the diamond and run it through the AGS software. I have seen diamonds that are new cut AGS0 but the proportions lie just outside the white box on the HCA toolas does yours. So who knows, yours could be an AGS 0 too.

The depth% differs because the GIA measurements of diameter and depth in mm differs from the jewelers scanned measurements. You should ask the jeweler why the difference in measurements.

Well you can do a search to compare prices. Typically AGS1 stones might be discounted a little from AGS0 but since yours is a GIA, it''s hard to compare. I think you have an really well cut diamond there but that''s the thing... sometimes average cut stones sell for just as much as well cut.

As far as the 59% table, for me I applaud the HCA, new AGS cut grade, and new GIA cut grade because they are finding that beautiful diamonds do exist outside the Tolkowsky ideal range. The one thing all three of these can agree on is that the pavillion angle/crown angle combo is incredibly important to performance and yours is a great combo. If you like how it looks, well that''s the most important thing.

I''m sure if you listed a price lots of folks can comment.

One thing I like is it looks like all the inclusions are on the pavillion side of the diamond.

Good luck.

 

[gardenia]

I was quoted a price around $16,000. Thoughts?

 

[Mara]

you can use the PS search up above to check similar stones for pricing comparisons...

this is an atypical kind of idealish stone...as the others noted a lower table with these specs would be more in the AGS ideal range...i''m personally not a fan of a larger table like 59 with a depth like 60..having done the larger tabled stone before...but a lot of people love a 60/60 stone and swear by it''s beauty.

the positive thing for this stone is that even with the large table, the angles are VERY desirable. i think it would probably be a very beautiful stone, even with the larger table. so while my criteria for stone buying are a little more picky than most, i think that this stone if you have seen it in person and find it stunning visually, the numbers correspond with that, so it seems very promising. if you have not seen it in person, you may want to before purchasing, or buy it and inspect it within a return time period because i find that with these more atypical idealish stones, you either visually love them, or you don''t.

good luck!

 

[gardenia]

Hi whatmeworry,

I was told that the ogitech machine may have had slight differences in callibration and that an error of ".02 + or -" is generally accepted.

What do you think about this?

Big thanks to everyone else for the cut comments!

 

[Lorelei]

Date: 6/24/2006 1:30:43 PM
Author: Mara
you can use the PS search up above to check similar stones for pricing comparisons...

this is an atypical kind of idealish stone...as the others noted a lower table with these specs would be more in the AGS ideal range...i'm personally not a fan of a larger table like 59 with a depth like 60..having done the larger tabled stone before...but a lot of people love a 60/60 stone and swear by it's beauty.

the positive thing for this stone is that even with the large table, the angles are VERY desirable. i think it would probably be a very beautiful stone, even with the larger table. so while my criteria for stone buying are a little more picky than most, i think that this stone if you have seen it in person and find it stunning visually, the numbers correspond with that, so it seems very promising. if you have not seen it in person, you may want to before purchasing, or buy it and inspect it within a return time period because i find that with these more atypical idealish stones, you either visually love them, or you don't.

good luck!

Welcome to PS

Ditto what Mara has said, especially with the larger table, it wouldn't be my preference either but the angles are terrific and overall it could be a very beautiful diamond, definitely worth considering seriously. Especially in this size range diamonds are in high demand. Pics please if you get it!

 

[gardenia]

We are trying to go and see it next week and I am so excited. I am curious though what effect a larger table has on the appearance of the stone. Can someone advise me on this? I haven''t seen one yet.

 

[Lorelei]

Gardenia - if you read this thread this should explain about table sizes for you

http://diamonds.pricescope.com/tablesize.asp

 

[gardenia]

Very interesting link. Thanks. I will get some photos and post after I view it.