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Round Brilliant Diamond almost Perfect Cut!

Sparkle11

Rough_Rock
Joined
Nov 25, 2020
Messages
8
Hello everyone! I love the community here on PriceScope and am grateful! After many months of learning and searching it has come down to these 3 diamonds. I am really needing your help on which one is best out of these to purchase. Truly appreciate your expertise and opinions.


CC3904AC-53DA-40AD-93FB-6C8B99F47DD3.png 490C4756-ABE6-4E5B-9B77-33A9E9795181.png



This is an Astor cut as well however it doesn’t say on the GIA certificate like the one underneath. Also it doesn’t show a plot on the GIA certificate, should that worry me about this one ... because it does a little lol



461CDCE1-51F0-4B55-8E9E-DEE67CD7E38E.png 7E60EA4B-D031-4137-9FCA-8BB25B5D55CC.png



E543685F-707A-413D-8C27-D884DE9F5D0D.png 1FA9D432-8C88-4767-B15B-9D1C0F4FA181.png

Your help is very much appreciated. I can’t wait to hear what all of you think!
 

Rons Wolfe

Shiny_Rock
Joined
Sep 21, 2020
Messages
120
The I color one. J is just too tinted for me.

Plus it's an ACA, so you KNOW it's going to be a beauty.
 

Sparkle11

Rough_Rock
Joined
Nov 25, 2020
Messages
8
The I color one. J is just too tinted for me.

Plus it's an ACA, so you KNOW it's going to be a beauty.

Thank you so much for your input! I was stressing over the proportion/cut being :


Table : 57%. (54-57)
Depth: 61.5 (61-62.5)
Crown Angle 34.5 (34-35)
Pavillian Angle 40.8 (40.5-40.8)
Culet None
Thin to Medium faceted 3.5% girdle thickness
Crown Height 15%
Stars 55%
Lower Girdle 75%
Upper Girdle 40 to 43. Classic (don’t fancy painting or digging)
Length to Width Ratio 1.0 to 1.3
No painting.

Cut Excellent / Ideal
Carat .9 to 1.3
Colour D to J
Clarity S1 (if eye clean). Vs1 to Vs2

I thought this would give the utmost balanced sparkle between fire/brilliance and scintillation.

I think you are right though. Going with the I colour and AGS is probably a more secure choice since it is being purchased blind.
 

Victor Canera

Shiny_Rock
Trade
Joined
Oct 8, 2010
Messages
218
Hi @Sparkle11 and welcome to PS.
A common misconception is that super ideal cut diamond can be achieved by matching up proportions from a lab report. The problem is that lab reports average the angles and proportions of the diamond and don’t tell you how much variance there is between the facets. The numbers also don’t grade the level of optical symmetry. That’s why analytic scope images like ASET, hearts etc. are critical. Here’s a visual we’ve used in the past which shows two seemingly identical diamonds in terms of proportions but which perform and look vastly differently:
Diamond with Nearly Identical Proportions on Paper - Imgur.jpg


Good luck!
 

Kim N

Brilliant_Rock
Premium
Joined
Oct 6, 2005
Messages
1,404
The I color for sure!
 

Izzy70

Shiny_Rock
Joined
Jul 3, 2018
Messages
104
The I ACA was on my wish list which I nearly brought but went for another in the end.
 

Rons Wolfe

Shiny_Rock
Joined
Sep 21, 2020
Messages
120
Thank you so much for your input! I was stressing over the proportion/cut being :


Table : 57%. (54-57)
Depth: 61.5 (61-62.5)
Crown Angle 34.5 (34-35)
Pavillian Angle 40.8 (40.5-40.8)
Culet None
Thin to Medium faceted 3.5% girdle thickness
Crown Height 15%
Stars 55%
Lower Girdle 75%
Upper Girdle 40 to 43. Classic (don’t fancy painting or digging)
Length to Width Ratio 1.0 to 1.3
No painting.

Cut Excellent / Ideal
Carat .9 to 1.3
Colour D to J
Clarity S1 (if eye clean). Vs1 to Vs2

I thought this would give the utmost balanced sparkle between fire/brilliance and scintillation.

I think you are right though. Going with the I colour and AGS is probably a more secure choice since it is being purchased blind.

Those numbers are perfect, that's going to be a stunner.
 

bright&shiny

Shiny_Rock
Joined
May 11, 2009
Messages
349
Hi @Sparkle11 and welcome to PS.
A common misconception is that super ideal cut diamond can be achieved by matching up proportions from a lab report. The problem is that lab reports average the angles and proportions of the diamond and don’t tell you how much variance there is between the facets. The numbers also don’t grade the level of optical symmetry. That’s why analytic scope images like ASET, hearts etc. are critical. Here’s a visual we’ve used in the past which shows two seemingly identical diamonds in terms of proportions but which perform and look vastly differently:
Diamond with Nearly Identical Proportions on Paper - Imgur.jpg


Good luck!

I think this should be a pinned image - so helpful in explaining why the reports are only a start for selection. Thank you for posting it!
 

Sparkle11

Rough_Rock
Joined
Nov 25, 2020
Messages
8
Hi @Sparkle11 and welcome to PS.
A common misconception is that super ideal cut diamond can be achieved by matching up proportions from a lab report. The problem is that lab reports average the angles and proportions of the diamond and don’t tell you how much variance there is between the facets. The numbers also don’t grade the level of optical symmetry. That’s why analytic scope images like ASET, hearts etc. are critical. Here’s a visual we’ve used in the past which shows two seemingly identical diamonds in terms of proportions but which perform and look vastly differently:
Diamond with Nearly Identical Proportions on Paper - Imgur.jpg


Good luck!

This is most helpful Victor thank you!
 

Sparkle11

Rough_Rock
Joined
Nov 25, 2020
Messages
8
AE1919BD-8FD3-45EE-95A9-2A5D550D2E13.jpeg

Thank you everyone one of you. You truly have helped me and my boyfriends dream come true. Your input means the world to us because we literally were losing sleep over which one to invest in. Thank you AE1919BD-8FD3-45EE-95A9-2A5D550D2E13.jpeg
 

AprilBaby

Super_Ideal_Rock
Premium
Joined
Jul 17, 2008
Messages
11,566
The WF one has a better upgrade policy. You picked a real beauty! Congratulations!
 

Izzy70

Shiny_Rock
Joined
Jul 3, 2018
Messages
104
No kidding


@Izzy70 no kidding!! Which diamond did you end up going with?
As soon as I saw the size I was like I am sure I have looked at that diamond and sure enough it was still in my wish list..
I went for this one in the end. I can’t remember the reason why but I think this is the first one I saw and decided to go for it rather than dithering!

 
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