QUOTE(wethead91 @ Oct 13 2018, 12:58 PM)
Thanks kambingkoh. Wondering how do these perform and if I can get a bigger stone for the similar amount of money <6k
https://www.whiteflash.com/loose-diamonds/r...ond-4039674.htmhttps://www.whiteflash.com/loose-diamonds/r...ond-4032915.htmhttps://www.briangavindiamonds.com/diamonds...gs-104101862138HCS score of <1.5 and the depths seem to lie within the acceptable range.
Hey sorry. Was too tired yesterday to reply.
First of all, the 80-pointers you listed previously have calculated ideal weight that goes below 0.80ct after applying the formula of weight x height x 0.0061.
Actual weight and calculated weight difference: +0.015ct (round to 3 decimal places)
Yup, I did mention that diamond at this size should not go beyond 0.01ct difference, but guess I was not 100% correct. Guess at this size, difference can really go beyond the 0.01ct mark. But then, get back to the previous diamond you have shown me, the difference is actually 0.02ct and above, and of course, no images, so I will still skip the diamond. In reality, diamond cutters will still try to retain as much as weight as possible, but since the diamond cutter did not sacrifice on the performance of the diamond so I am actually okay.
As for Black by Brian Gavin 0.803ct E VS2, the difference with actually calculated weight is 0.012ct (round to 3 decimal places).
In fact, a lot of diamonds in the 0.8ct range also exceed 0.01ct difference.
Of course, you can still find diamonds that are close to the actual weight, such as this one:
https://www.whiteflash.com/loose-diamonds/r...id=myengringexp (affiliate link). However, this diamond falls under Expert Selection, which is a level lower than A CUT ABOVE, and the slightly lower performance is observable in the ASET image of the diamond. However, if you are particular about the actual weight, than this may be a good choice. You can also see that the dimension of this diamond is slightly bigger a well, although very much undetectable in real life.
Personally, I would encourage people to focus on the quality of the diamond as a whole instead of the actual calculated weight. Actual calculated weight is just a complement of the whole analysis.
Between these 3 diamonds, the Black by Brian Gavin stands out in terms of cut. It is evident in the Hearts image. However, the feather inclusion on the Black by Brian Gavin worries me a little, if you look at the inclusion plot. If you are interested in this diamond, you can check with the sales consultant and ask them to evaluate for you whether the inclusion will bring any durability issue inn the long run.
The 0.802ct F VS2
https://black.briangavindiamonds.com/diamon...?a_aid=myengexp (affiliate link) seems to have a safer clarity level. So I would prefer this diamond more.
Now, the 0.971ct G SI1 definitely looks nice overall. Despite the hearts is slighly not as good as Black by Brian Gavin, the size alone wins. G is pretty white and the SI1 does look rather safe overall. And the actual calculated weight is actually higher than the actual weight itself, which is not bad. The certificate for this stone is A CUT ABOVE, however, this falls under Expert Selection category. I would encourage you to find out more from the sales consultant to see what's going on there. Nonetheless, factoring in value of money for a performer, this is it.
Let me know if you have any other questions.