Actual diamond videos are helpful, especially when determining how eye-clean a diamond can be.
They are also useful in determining the scintillation, the brilliance, and the sparkle of a diamond, as long as the diamond retailer provides it like how WhiteFlash did. It will help you gauge how well a diamond can perform in real life. Of course, this is highly magnified videos so sometimes you may not see the minor details such as the minor sparks in real life. Nonetheless, personally I find it rather useful as I have a client that upgraded his diamond and the diamond he has chosen has tremendous performance on the video with bold flashes and coloured sparkles which correlates with its real life performance. But then, don't solely rely on the videos alone, make use of the proportions to gauge the performance as well.
Now, let's take a look at a practical usage for the video provided by WhiteFlash. We take a look at the video of this wonderfully cut diamond 0.62ct H VS2 WhiteFlash Expert Selection. At first glanced, I was deeply surprised to see this diamond falls into the category of Expert Selection, as this diamond is more than enough to fall under WhiteFlash ACA category, based on both performance images and proportions! If we are buying solely based on those images and proportions, I would say it is a good catch! However, in this case, not so, so what exactly has gone wrong?
Here is the some images captured from the diamond video at 3 different angles.
Do you see it has a cloudy appearance? Apparently this diamond has worse than VS2 clarity in real life. In reality, this diamond has excessive cloud inclusions that the grader decided not to take it into account. How can we know? Well, it is actually stated in the grading report: Clarity grade based on clouds not shown. Now, this practice is not only limited to AGS only, but GIA as well. You can read more about this in Beyond4Cs.
Now, I have to give it to WhiteFlash for being transparent in this matter. Without the video, it can easily fool many people as the actual photograph of the diamond itself looks pretty nice and the other performance images are simply excellent.
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Now, let's take a look at a practical usage for the video provided by WhiteFlash. We take a look at the video of this wonderfully cut diamond 0.62ct H VS2 WhiteFlash Expert Selection. At first glanced, I was deeply surprised to see this diamond falls into the category of Expert Selection, as this diamond is more than enough to fall under WhiteFlash ACA category, based on both performance images and proportions! If we are buying solely based on those images and proportions, I would say it is a good catch! However, in this case, not so, so what exactly has gone wrong?
Here is the some images captured from the diamond video at 3 different angles.
Do you see it has a cloudy appearance? Apparently this diamond has worse than VS2 clarity in real life. In reality, this diamond has excessive cloud inclusions that the grader decided not to take it into account. How can we know? Well, it is actually stated in the grading report: Clarity grade based on clouds not shown. Now, this practice is not only limited to AGS only, but GIA as well. You can read more about this in Beyond4Cs.
Now, I have to give it to WhiteFlash for being transparent in this matter. Without the video, it can easily fool many people as the actual photograph of the diamond itself looks pretty nice and the other performance images are simply excellent.
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November 26, 2018
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