Which RB would you choose? 55% and 59% table

[kristalulu]

Hello all!! I'm deciding from two round brilliants, and because they are both from Blue Nile I am unable to get any analysis performed on them. So what is a girl to do? Well, I bought them both so I could judge them for my personal preference, but until I have them (scheduled delivery is Friday 2/1/13), I wanted to get your opinions, and perhaps photos if you have any. So, here is the dilly: both match up carat/color/clarity/cut grade/polish/symmetry, however, the table/depth/crown/pavilion values are very different:

Stone A
7.54*7.60*4.54
Table: 59%
Depth: 60.0%
crown: 33.0 degrees
pavilion: 41.0 degrees
girdle: 3.5%

Stone B
7.45*7.49*4.65
Table: 55%
Depth: 62.3%
Crown: 35.0 degrees
Pavilion: 40.6 degrees
girdle: 4.0%

So, what characteristics do you like better and why?

Thanks!!!

 

[diamondseeker2006]

Stone B is cut to the more standard ideal proportions. I would not want a 59 table, personally. I like more of the crown to show. But you might prefer the slightly larger size of the other one if you don't mind the larger table. I assume they both have excellent symmetry, right? That would be an essential for me.

 

[ame]

Hello all!! I'm deciding from two round brilliants, and because they are both from Blue Nile I am unable to get any analysis performed on them. So what is a girl to do? Well, I bought them both so I could judge them for my personal preference, but until I have them (scheduled delivery is Friday 2/1/13), I wanted to get your opinions, and perhaps photos if you have any. So, here is the dilly: both match up carat/color/clarity/cut grade/polish/symmetry, however, the table/depth/crown/pavilion values are very different:

Stone A
7.54*7.60*4.54
Table: 59%
Depth: 60.0%
crown: 33.0 degrees
pavilion: 41.0 degrees
girdle: 3.5%

Stone B
7.45*7.49*4.65
Table: 55%
Depth: 62.3%
Crown: 35.0 degrees
Pavilion: 40.6 degrees
girdle: 4.0%

So, what characteristics do you like better and why?

Thanks!!!

I wouldn't have even looked at a 59% table. I only really search around a 55%. I might occasionally go with a 55-57 range. I will almost always go for a 55% table but the example you gave I would pass on, it seems a little steep/deep. I personally would probably return both, probably without so much as a second glance and start over elsewhere from a vendor that provides pics of the actual stone.

 

[04diamond<3]

55% table!! I wouldn't consider anything bigger than a 56% table.

 

[kristalulu]

Thank you for your responses!! What characteristic does a smaller table add to a RB? And yes, they both have excellent symmetry.

I thought the depth might be too deep for stone B... Is there anyway that the thickness of the girdle might have something to do with that? Granted its medium to slightly thick... Ugh, why can't I have more $$ to spend!!!!

 

[Laila619]

Stone B for sure. I don't like diamonds with Stone A's proportions generally.

Smaller table = more fire/less glare.

 

[TC1987]

55% - 56%

If you have a very large table, the table facet is so large that you get brilliance or table glare, or perhaps fire out toward the perimeter of the diamond, because the big table leaves less room for the star, bezel, and upper girdle facts that make most of the fire. (The facets surrounding the table cause dispersion.) The % crown (crown height) tends to also be lower with such stones, and those diamonds might also have a shallow pavilion, and might have some head obstruction issues.

The "ideal" proportions give more fire all the time, not just out at the rim or at a tilt, because taller crown, smaller table, and more of the star / bezel / upper girdle facets are visible from the top.

 

[gwaipor]

Speaking of table %, guys what's your opinion on this one?

It is under 6k about 1-1.5k cheaper than usual VS1 I 1.00ct? Is it due to the table?
It's also classified as H&A on the site

Carat weight:1.02
Certificate:GIA
Color:I
Shape: Round
Clarity: VS1
Cut: Excellent
Depth %:61.00
Girdle: Medium-Slightly Thick
Table %:58.00
Culet:NN
Polish:Excellent Crown ∠: - Symmetry:Excellent Crown %:- Fluorescence:None Pavilion ∠:- L/W/D: 6.48*6.51*3.96 Pavilion %: -

 

[leeac]

Hello all!! I'm deciding from two round brilliants, and because they are both from Blue Nile I am unable to get any analysis performed on them. So what is a girl to do? Well, I bought them both so I could judge them for my personal preference, but until I have them (scheduled delivery is Friday 2/1/13), I wanted to get your opinions, and perhaps photos if you have any. So, here is the dilly: both match up carat/color/clarity/cut grade/polish/symmetry, however, the table/depth/crown/pavilion values are very different:

Stone A
7.54*7.60*4.54
Table: 59%
Depth: 60.0%
crown: 33.0 degrees
pavilion: 41.0 degrees
girdle: 3.5%

Stone B
7.45*7.49*4.65
Table: 55%
Depth: 62.3%
Crown: 35.0 degrees
Pavilion: 40.6 degrees
girdle: 4.0%

So, what characteristics do you like better and why?

Thanks!!!

I wouldn't have even looked at a 59% table. I only really search around a 55%. I might occasionally go with a 55-57 range. I will almost always go for a 55% table but the example you gave I would pass on, it seems a little steep/deep. I personally would probably return both, probably without so much as a second glance and start over elsewhere from a vendor that provides pics of the actual stone.

I think "steep/deep" refers to a deeper stone that has both crown and pavilon angles that are simultaneouly steep. The crown and pavilion angles should ideally vary inversely so that a steeper crown angle is offset by a shallower pavilion angle to create excellent light reflection/return.

It seems a lot of people want to write off a stone sight unseen as a throwaway when they discover anything over a 62% depth. However, I would disagree. I think you can find absolute stunners in the "fire" department in the 62-63% depth category, but you want to try to match those up with proportionate crown/pavilion angles. For instance, 36/40.6, 35/40.6, 35/40.8 are some proportions that should give you a boatload of a lot of fire with the 55 degree table.

I would say that both of those stones you ordered should be beautiful just based on the proportions. If you line them up side by side in different lighting, you may notice that the 59% stone gives off a lot more white light return (brilliance), and the 55% stone gives off a lot more colored light return (fire).

As for face up diameter values, but in most instances, we're talking one or two tenths of a millimeter difference for a slightly deeper stone, which for a 7.5mm stone, is only about 2%-3% of the total diameter (and surface area) of the diamond, and for a 1.5c stone, very difficult to notice.

I'm very curious to see how your experiment turns out. It would be great if you could snap a few photos of the two diamonds side by side in different lighting and post here, so perhaps we could try to tell the difference (or different characteristics) of the two!

Good luck!

 

[kristalulu]

Thanks for all your input!! Come next Friday, I will take some pics and we can play a game This is going to be a LONG week!!!!