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Help me evaluate this cushion modified brilliant - depth 39%

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yellowrose1400

Rough_Rock
Joined
Sep 25, 2017
Messages
15
http://www.b2cjewels.com/dd/8834628/Cushion-Diamond-K-Color-SI1-Clarity

So, I'm a newbie, but I understand (I think) that this diamond must not be well cut and that a depth of 39.4% is way less than ideal but at 8.37x7.63x3.01mm (73.00% table) it faces up MUCH larger than the 2.04 carat (7.75 x 7.04 x 4.81 mm) that I bought a week ago. Can you explain to my why I shouldn't be returning my much more expensive 2 carat for this if my goal is to have the most finger coverage/largest face up possible? My intuition says to keep the one I bought (determined by the jeweler to be well-cut, have excellent light return, and to be overall really nice) but I can't get over these measurements. I'm not concerned by the color (I like warmer stones) or the clarity (SI1 and eye clean is fine with me).

Anyway. Can anyone validate my intuition NOT to buy this diamond? Because I'm seriously feeling obsessed with the idea of a cushion with that much finger coverage that is WELL within my budget.

EDIT: It sold, but I would still love an explanation because I am curious and trying to learn everything I can.
 
Last edited:
yellowrose1400 said:
http://www.b2cjewels.com/dd/8834628/Cushion-Diamond-K-Color-SI1-Clarity

So, I'm a newbie, but I understand (I think) that this diamond must not be well cut and that a depth of 39.4% is way less than ideal but at 8.37x7.63x3.01mm (73.00% table) it faces up MUCH larger than the 2.04 carat (7.75 x 7.04 x 4.81 mm) that I bought a week ago. Can you explain to my why I shouldn't be returning my much more expensive 2 carat for this if my goal is to have the most finger coverage/largest face up possible? My intuition says to keep the one I bought (determined by the jeweler to be well-cut, have excellent light return, and to be overall really nice) but I can't get over these measurements. I'm not concerned by the color (I like warmer stones) or the clarity (SI1 and eye clean is fine with me).

Anyway. Can anyone validate my intuition NOT to buy this diamond? Because I'm seriously feeling obsessed with the idea of a cushion with that much finger coverage that is WELL within my budget.

EDIT: It sold, but I would still love an explanation because I am curious and trying to learn everything I can.
Click to expand...

I understand where your thought process is, and yes...spread is far more important to consider for size, rather than carat weight. HOWEVER...
Depth % is key in Cut; how the diamond performs, and is affected by lighting environment is all dependent upon the combination of the angles used when the stone is cut from rough. Shallow diamonds tend to be more dull, due to poor cut.
The only way to know for certain would be to have comparison between your 2ct, and that 39% depth stone. Video, ASET, IS, etc would truly be necessary, side by side, to evaluate in order to determine its true "value". It may have better spread, but it may not be as brilliant as your 2ct diamond.
 
Expanding on Matthews1127 informative response:
That is a very shallow stone – the odds are it would not look good. There are exceptions to the rule, but the fact is that you would need to actually observe the diamond in person to be able to see if it is one of the very very few good ones.
As a lover of Spready diamonds I can totally understand why you would be attracted to a stone like this, based on the measurements. Spread(Dimensional physical size) is very important to my wife in a diamond. I can tell you that the really good spready ones are few and far between. But when you do find them… Wowsa!!
I mean, who wouldn't like paying for a 2 carat that looks like a 3 carat
 
No way to truly evaluate without up close images, asets or idealscopes. Chances are that a 39% depth and a hugh table is that it will have a large
window and will not be returning light well. You just cant go picking stones by the numbers for cushions (even relatively nice numbers). This is so
far out there that is bound not to be a good stone but...see first sentence.
 
I got a spready diamond the first time around because I wanted it to look BIG! Actually, I got two 1.7 60/60 spready (yet ideal cut) round diamonds. My wife's diamond is lacking depth for sure - it faces up big and white and sparkles (white flashes), but there's something missing. And I think the "something" is depth. It's hard to explain without showing you. I'm going with a more traditional ideal cut with my upgrade. It won't be as BIG as a spready cut, but the sparkle will make up for it.

All that to say I think it's good the diamond sold out and you're keeping yours :)
 
Thanks everyone!!! I learned even more today (loving this journey of learning about diamonds) and am ultimately glad that it ended up selling. I think my boyfriend would have killed me, and I KNOW that the diamond I got is gorgeous. As much as I would have loved the spread it probably wasn't worth the risk.
 
I thought cushions should be 61-67% for depth?

Sorry, I'm a newb too and just trying to learn but 39% seems dangerously shallow?!
 
I am curious ...

Above 50% depth, I would have said that there is a good chance for an interestingly beautiful cut.

Below 60% - of course WWW
 
Last edited:
lalala said:
I thought cushions should be 61-67% for depth?

Sorry, I'm a newb too and just trying to learn but 39% seems dangerously shallow?!
Click to expand...

From what I've learned, cushions don't really have an ideal depth range because there's so much variation. But 39% seemed super low. Then again, it was scooped up in under an hour, so someone may have gotten a great deal with a 1.59 cushion that has the spread of a 3 carat.
 
With the "virtual diamonds" online ( this was one of those), there's really no way to tell if the stone was actually "snapped up" or just removed from a list for other reasons.
Sometimes stones are listed in error- and when someone starts asking, they get removed.
Point is- you don't need to feel like you missed a great deal....

valeria101- actually Yoram has cut stones for us well under 50% that look amazing. And we've seen others.
Remember, if a stone has an open culet, that alone can reduce depth tremendously- especially a large open culet.
 
@Rockdiamond

Let me say it again,

I am curious ! (this is a call for pictures, of course)

I am thinking that it is possible to have a patchwork of strong contrast in such a stone - with or without a crown [WWW !]. No question that a large culet helps - I might wonder what extent one is necessary if any ...
 
@Rockdiamond

I just have to say, I am such an admirer, and am totally, totally fan-girling that you responded to my post!!!
 
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