Is a .90ct Diamond Visibly Larger than a 1ct Diamond?

[Johnykin]

Good Afternoon, so per topic title is a .90ct Diamond visibly bigger than a 1ct Diamond? and If anyone has a real diamond image comparison between these 2 diamonds in the same picture that would be awesome. ^_^. Thank You All ^_^

 

[tyty333]

What??? I think we need some more details...your question is not making complete sense. I assume you are talking about round brilliants? In a well cut
round brilliant a .9 would not be larger than a 1 carat. You could find a 60/60 .9 that scores well on HCA that could be larger than a poorly cut 1 carat.

.9 that is larger than 1 carat below stone (wouldnt want it)
https://www.jamesallen.com/loose-di...-color-vvs2-clarity-excellent-cut-sku-3275442
Poorly cut 1 carat
https://www.jamesallen.com/loose-di...arat-d-color-vs1-clarity-good-cut-sku-3529885

So, No...a .9 does not look visible larger than a 1 carat in well cut stones.

 

[Bron357]

Carat weight is a weight, not a size.
Yes, it’s possibly for a diamond weighing .90 carat to “look bigger” than a 1 carat diamond if it is a flat cut ie rose cut but the different in “size” would be hardly discernible.
.90 carat is less weight than 1 carat or 1.0 so you would normally expect it to look fractionally smaller.

 

[RetroTreeGal]

@Johnykin, did you mean to ask info a 0.9ct diamond is noticeably SMALLER than a 1ct?

 

[babybrother]

If you compare a photo/video of a poorly cut 1ct to a .90ct ideal cut, there will be no competition and the size difference will be an after thought.

 

[OoohShiny]

If you compare a photo/video of a poorly cut 1ct to a .90ct ideal cut, there will be no competition and the size difference will be an after thought.

First post three years after joining? That's got to be a record lol

We'll look forward to more!

 

[pyramid]

An ideal 0.90 is 6.2mm and an ideal 1 carat is 6.5mm. A centimetre has 10 divisions on a ruler, divide one of these divisions in your mind into 10 bits and remove 8 of them, leaving 2 tenths of a bit, that is the difference. Tiny.

 

[rockysalamander]

Here's a visual comparison of two well-proportioned diamonds. I think you can see the difference when side-by-side and IRL. The difference between 0.9 and 1.0 is is 0.2 mm in spread and .9 c. A spready and well-cut 60/60 stone may get up to 6.46 mm, but they tend trade some fire for white light return.

0.91 c (6.24 mm) on left, 1.0 c (6.42 mm) on right, size 6.5.




0.91. https://www.jamesallen.com/loose-di...rat-e-color-vs2-clarity-ideal-cut-sku-2869887
1.0. https://www.jamesallen.com/loose-di...rat-h-color-vs1-clarity-ideal-cut-sku-2872000
1.0 60/60. https://www.jamesallen.com/loose-di...-color-vvs1-clarity-excellent-cut-sku-2629218

 

[arkieb1]

A well cut stone in general will have better edge to edge brightness thus making it appear slightly bigger so go for something that is a reasonably decent cut if you can rather than worrying about the difference between .90 and 1.00 which IMHO is more a size/mind thing anyway

 

[tanalasta]

What everyone has said. But unless you put one side to side, in real life, it would be difficult for anybody but the wearer would reliably tell the difference!

 

[marymm]

No.