First of all, those pictures are 100% SAMPLE pictures. Not the actual diamond itself. Be careful of that.

Please use this tool: https://www.diamondscreener.com/cut-estimator/. Key in the Table %, crown angle, pavilion angle. You will then get a glimpse of how similar diamonds with that sort of proportions may look like.

With that, you can see that the first two diamonds have the highest chance to become the worst performer. You can see based on the same proportions, there is a chance the arrows are not being reflected clearly.



While the last 2 diamonds have higher chance to become the best performer. You can see based on the same proportions, there is a chance the arrows can reflect clearly.



Rule of thumb is to find diamonds with clearer arrows to have a good chance for it to perform well.

Among all the four here, I will pick diamond 3 (7376665042), but that is solely based on proportions alone. I strongly suggest you to go and request for the actual diamond picture/video. If they have they physical stone available locally, I would suggest you to compare all your options and see which diamond captures your attention more.

Just see which one you like more under same lighting. I don't think they will give you hearts and arrows scope.

Just do a blind test and follow your heart ba. I think it is more practical and effective.

If you want more info on the cut quality, you will need the hearts and arrows the scope.

Anyway, the proportions for these diamonds won't make it to some of the proportions requirement of some diamond brands, but they may simply call that a gimmick.

For example, Lazare has the below proportions requirement:
https://www.lazarediamonds-sea.com/what-is-...are-diamond.php

I am not sure whether you see the Lazare diamonds when you visit the store or not. I would recommend you to take a look at them and see whether you like them or not. If yes, then you can consider looking for diamonds that fall within Lazare proportions to increase your chance of landing a good diamond.

Nice. The hearts and arrows look pretty good. You can download the pdf and see it for yourself. It has some bending tip at one of the hearts. Some hearts and arrows seller will take it as hearts and arrows while some wont due to this small discrepancy. But IMO, i dont think one can detect the differences with naked eye if an even better hearts diamond with similar proportion is side-by-side with this. The proportion of this diamond is very nice.

Here is a similar stone: https://www.whiteflash.com/loose-diamonds/r...ond-4428798.htm

It will be around RM 5420 for loose stone.

Custom made plain platinum casing (no side diamonds) will be around RM 2500 probably. If the platinum casing you saw has side diamonds, then the price of the casing will be increased by at least few hundred. Final price will have to be determined by the carat total weight and 4Cs of the small stone.

Anyway, assuming the casing is plain casing, Total price is RM 7920.

Given that you highlighted that you are buying from Brick and Mortar and they do provide after-sales service, and you are able to view the actual diamond, I think the price is rather fair (my own view). I would still try to haggle a bit with the salesperson and try to bring the price down by a little bit more.

Now, sometimes you may also get rather decent stones from other sellers that sell GIA graded diamonds. GIA is the strongest authority when it comes to diamond grading. The price will be even lower than the whiteflash link i posted. Loose stone price can be around RM 4500 for such specs, and if you are lucky, sometimes you may get stones with good hearts and arrows.

They are reliable. Loose diamond is tax-free for now (last time we have GST). While ring will have a good chance of getting taxed. When budget 2022 kicks in, I am not sure whether it will be the same or not.

Anyway, their price is competitive if you are comparing against signature diamonds from retailers. If you compare against typical GIA diamonds from various jewelers, they are not that competitive. Please make sure you view their signature diamonds and not their virtual inventory. If you intend to get a diamond from virtual inventory (like a big market of diamonds whereby most jewelers source their diamonds and do not custom cut then for their own brand), you can actually get it from any jewellers.

DeGem's one seems okay... do you have the video for ZCOVA's?

I won't pick this diamond due to the dark inclusion on the diamond table.

Also cavity is in Niceice's list of inclusion to avoid:
https://niceice.com/diamond-clarity-grades/#t-1610219369389
Although I will just take this for reference purpose only.

I used to talk to Niceice's founder and he is a knowledgeable person when it comes to diamonds.

The main reason I don't choose ZCOVA's diamond is still because of the dark spot on the table.

try to ask their consultant for assistance if you have not done so. If this diamond is chosen by them, ask for alternatives for comparison.

As for the stone from Degem, it looks okay.. just that 41.4 pavilion angle is usually not in the preferred angle range for signature diamonds like their Lazare diamonds. Try to look for diamonds that are within their Lazare diamonds proportions to maximize the possibility of landing a decent diamond.

Also, you can also visit Degem's sister company Diamond and Platinum for alternatives. their Estrella diamond seems pretty good based on what I saw from other forumers posted here.

Try ask for more options. KIV this one first. See the dark spot between 1 to 2 o'clock? That is something I don't prefer. The proportion looks pretty decent though.

Looks pretty nice for an SI.

The cut quality is rather good although I won't say it is exact hearts and arrows, not rocket science to see, but it is pretty good to me. I will bet my money that it can perform pretty good.

For the price, you can just compare with other vendors like ZCOVA.

Make sure the BGM for this diamond is NO. DeGem should be able to get that data from supplier.