Diamond Query: ASET, Idealscope, and Millimeter Measurements in Whiteflash Round Cut Diamonds

| Anonymous Reader

First of all, I would like to thank you for all your very helpful tutorials and articles. To the layman like me, finding the right diamond is a far from trivial task and your work has helped me a great deal!

I am currently in the process of looking for an engagement ring and I have been reading your articles for guidance. I am now homing in on a design from Whiteflash but I am hesitating between 3 diamonds compared here:


Diamond Comparison


My feeling looking at the Idealscope images would be that the best diamond would be the one on the right because it has the lowest white surface. However, the few white areas are all concentrated on the right side. Is that an indication of a symmetry problem? From the Idealscope I would say that the best is the one on the right, then the one on the left. Is that correct?

Looking at the Aset image, they all seem pretty similar to me except that the one on the right has more symetric blue areas, which I read are a thing to look for. So based on the Aset I would root for the diamond on the right.

The hearts patterns seem to me to be the best in the middle diamond as the hearts and Vs are the most similar, with a similar spacing. Looking only at the hearts image I would root for the diamond in the middle. Hence my confusion.

To my non-expert eye and knowledge from Google, I would go for the one on the right in terms of quality. Would you agree? Also, are the differences seen in the images worth the substantial price differences?


Your Diamond Teacher |


Thank you for your inquiry. I am happy to help! And I am glad to hear the information on my website is helpful. Thank you!

It sounds to me like you have done your due diligence on this highly significant purchase. The three diamonds you selected are all an excellent choice.

And if I lined these three diamonds up in front of you, in person, you would not be able to tell them apart. They will all offer the same level of brilliance, sparkle and fire. They are practically identical in that respect, as well as their color and clarity.

If you are leaning towards the one on the far right, then that is the one you should go for. It's also the one I would purchase, because it will be noticeably larger than the other two based on the millimeter measurements.


0.808 ct F VVS2 Expert Selection Round Cut Loose Diamond

0.808 ct F VVS2 Expert Selection Round Cut Loose Diamond


Please let me know if you have additional questions!



| Anonymous Reader

Thank you for your helpful reply! Are leakage spots as seen on an ideal scope always a bad thing even when symmetrically present on the diamond?

If I understand correctly, the diamonds are 5.78-5.80 and 5.98-6.01mm wide. Is a difference of 0.2mm really noticeable? I read your article about diamond sizes and in the example with the closest carat weight where you compare a 0.5 and 0.75 carat diamond, the difference is noticeable but the difference is of 0.6mm. Thanks a lot for your help!


Hi, I forgot to mention this one:


0.801 ct E VS1 A CUT ABOVE® Hearts and Arrows Diamond


How do you think it compares to the other two?


Your Diamond Teacher |


We are splitting hairs, so-to-speak between the differences of these diamonds. I know you would like a more technical and precise response from me, however, all the diamonds you selected are practically identical.

There isn't anything for me to separate between them. They will all provide the sparkle you want a diamond to have.

It really comes down to which one you are instinctively leaning towards. 🙂



| Anonymous Reader

Thanks a lot for your help and advice! I will go for the 0.742ct diamond.


0.742 ct F VVS2 A CUT ABOVE® Hearts and Arrows Diamond

0.742 ct F VVS2 A CUT ABOVE® Hearts and Arrows Diamond


Your Diamond Teacher |


You are very welcome. I am certain you will be happy with your decision. I would love to hear back from you once you receive the diamond to hear your thoughts!



| Anonymous Reader

No problem. I'm in the last stage before the final order. I just need to get a measurement of the ring finger size. I'll let you know my thoughts once I  get the ring but I'm sure that I'll be really happy with it. Best regards!




Sebastian Naturski loves to write about diamonds and share his knowledge with his readers.
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