In the case of that 0.46ct, I believe the cutter definitely knows what he is doing based on the crown and pavilion angle. But then in order to retain weight, he is not willing to sacrifice the depth because this would translate to lower carat, and lower selling price. It is pretty common in that industry I believe, but it is good that there are cutters that are more of a purists that would be willing to sacrifice on price to get better cuts. We jusy have to know where to buy such diamonds in order to make the most out of our hard earned cash.

Diamond 1 - CBI E VS2 - 0.42ct, 4.84 - 4.86 X 2.97 mm - $1423
Diamond 2 - Black by BGD E VS1 - 0.414ct, 4.81 x 4.83 x 2.96mm - $1430
Diamond 3 - Black by BGD F VS2 - 0.41ct, 4.78 x 4.8 x 2.96mm - $1292

Diamond 1 wins in terms of size compare to Diamond 2, while Diamond 2 wins in terms of clarity.

My preference will be below:
Diamond 2
Diamond 1
Diamond 3

The reason I prefer Black by BGD is because I have confidence with Brian Gavin because of the legacy he left with WhiteFlash ACA. And since this is the pinnacle of his work, I am sold. However, this is because I have experience with WhiteFlash before and read about them. However, do note that BGD does not provide free shipping worldwide. I am not sure how much to be exact, but I am guessing around USD 55. Feel free to check with their helpful online support.

However, for first-timer, I would most likely go with CBI, this is because the images they provide is really excellent, despite the lower quality photos due to their more "old-school" technology compare to BGD's state-of-the-art machine. Other than that, they do provide free worldwide shipping via Fedex and this make it more value for money. Besides, I just noticed their Free Gem Kit with Diamond Purchase contains the following:
Temporary diamond holder which resembles a ring means you can use that temporary holder to propose! After that, you and your love one can go and look for the perfect ring design for your loose diamond.

If you buying from Brian Gavin, would appreciate if you can add my blog as your referral. If you are buying from High Performance Diamond, I am not affiliate to them, but I know someone who does, if you need help, then I can refer you to him because he knows the owner of HPD personally.

Anyway, you can't go wrong with either of these diamonds. Good luck and all the best! 

Thank you, I finally made up my mind and take up the Diamond 2 with the link you provide. Hope it helps! 

Well, everyone has their own preference. Asian market is more concious on brand.

Anyway, let's take branded goods as example. When I buy an LV, I would probably say one of the reasons will be workmanship, e.g. You can easily see the stitches are good. However, let's say one of the LV has bad stitches, will you buy it for such high premium? I guess not.

Similarly, same concept should be applied to diamonds. If big brands were to charge a high premium on their diamonds, at least show that it is worth it. In fact, it is actually very very very easy for them to proof it, but very very very impossible for them to execute such move because this will translate to higher time to market, lower diamond production due to QC, and lower revenue. Even if they put a higher premium on the diamonds, I believe the revenue will still be lower because affordability of the market becomes narrower... Well, this is just based on my thinking though,  but at the very least, big brands should start to show the necessary images to back it up.

In the case of that 0.46ct, I believe the cutter definitely knows what he is doing based on the crown and pavilion angle. But then in order to retain weight, he is not willing to sacrifice the depth because this would translate to lower carat, and lower selling price. It is pretty common in that industry I believe, but it is good that there are cutters that are more of a purists that would be willing to sacrifice on price to get better cuts. We just have to know where to buy such diamonds in order to make the most out of our hard earned cash.

True le.. I did think of all the factor and also review and comment u all given .. given by price range i have plus the size that i wanted plus brand .. i really out of few option .. i might get bigger better and cheaper and better cut  with other brand but ...    dilemma  .. tak apa what done is done

Diamond is just a tool to get what needs to be done. You have put in effort to get the best option that is offered to you, so that's all that matters.
USD 1800 x 4.4 = RM 7920
Add 6% GST = RM 8395.20
Add custom ring setting RM 1000 - RM 2500 = RM 9395.20 - RM 10895.20

Looking at this calculation, if you get one of the best super ideals @ E VS1, shipped it into Malaysia, then custom made it with a 18k white gold ring, the maximum price that you need to pay is actually higher than what you have paid. But we can probably get the custom setting done at around RM 1300, so the price will be RM 9695.20. So you at this moment, you are overpaying by RM 504.80.

Price difference of poorly cut diamonds and excellent cut diamonds are at 30% according to this site: http://www.naturallycolored.com/buying-guide/diamond-prices. Your diamond's cut won't go down into poor, so I am just making a guess that it should probably be cheaper by 10-15%. Let me use 15%. So your loose diamond price may cost around RM 7920 - 15% = RM 6732. Add on the earlier custom ring setting at RM 1300. So my guess for the final fair price should be around RM 8032 (just educated guess). So, the brand "Forevermark" has a premium of RM 2168.00.

Also, if you ring setting comes with palladium or comes with side diamonds, it should be more expensive than RM 1300. If that is your case, the brand name will cost somewhere below RM 2000.00.

All branded goods, we pay a premium for the brand. So, do you think a brand is worth around RM 2000? If you can accept, then be happy about it man. Getting the ring onto her finger is the most critical priority!

Congratulations and may the force be with you. 

Congratulations on your purchase.    Mind sharing how much they charge you for shipment to Malaysia?

The price of diamond is $1430 and final charge $1474 in the invoice. I assume that's the shipping fee? Cause the shipping fee column is $0.00 

kambingkoh

juz back from overseas and successfully completed my proposal... 

seems like i unable to locate back the receipt for the diamond.... 

It's alright. What did you do for proposal?

i did my proposal at kalibiru national park in yogjakarta... on top of a tree platform... 

Ya agreed .. thanks for the explanations.

I have seen a Forevermark diamond under various scopes. Fulamak!! Don't know how it made it to 3Ex man. Arrows all senget, light leakages everywhere, really facepalm.

I guess that's what you get when you self certify your stones.

"Tak ada 3Ex, kita bina 3Ex!"

Pokok in ke? 

I will bina 8Ex.

Curious, what is the crown height and pavilion depth of your diamond?

15.9 % and 43 %

Hmm, how about the girdle thickness?