Diamond 1 - Pavilion angle is way over steep. You can skip it.
Look at what Enchanted Diamond score it: https://enchanteddiamonds.com/cut-score-cal...cate=6242118981. Just 66.3%.

Diamond 2 - It has faint fluorescence (probably nothing major but will tend to skip it). More critical one is the diamond is cut pretty deep at 62.7%. You look at the size of this diamond: 4.29 - 4.31 x 2.70 mm. Compare it to the size of diamond 1, which is 4.34 - 4.36 x 2.69 mm. Both same 0.31ct, but diamond 2 has lesser face up area indicating diamond 2 carat weight is wasted on depth instead of face-up area. Nothing major though because we are just talking about 0.05mm, but worth highlighting.

Look at what Enchanted Diamonds score it: https://enchanteddiamonds.com/cut-score-cal...cate=2236425202. 94.4%. Probably lose some score in terms of depth.

At this depth, there may be light leakage. I would encourage you to request IdealScope image (fingers crossed that you can get it) to check for light return. Also, H&A image is pretty easy to capture as well, but then it is not uncommon that the vendor can't provide right away.

As for price, I can't really comment. But putting aside fluorescence and the depth, you are paying a premium for VVS1. There is really no need to do so IMO.

Personally, I will continue to look for another diamond. You can try ask TJ to look for diamonds without fluorescence with E VS1, and see what they have in-store for you. Also, request for diamonds that have diamond depth max at 62%, crown angle between 34.4 - 34.9 (for GIA will be 34.5 - 35 because they round up at 0.5), pavilion angle at 40.6 - 40.9.

Hope this helps. Good luck bro.

Eh? Missed out. 

Diamond 3 - 96.9 (EC Score: https://enchanteddiamonds.com/cut-score-cal...ate=6255309717)
Diamond 4 - 97.2 (EC Score: https://enchanteddiamonds.com/cut-score-cal...ate=7241777165)
Diamond 5 - 100.00 (EC Score: https://enchanteddiamonds.com/cut-score-cal...ate=5182348193)

The look of Diamond 5 from the PDF looks okay to me. But not sure why the Hearts & Arrows only score "Very Good". You might want to check on that. Also, the 34 degree crown angle, although ideal at 34 degrees, but I prefer slightly steep because will increase some fire. But nonetheless, after looking at all the available options and images on PDF (I did not check the SendSpace because office internet block it), Diamond 5 will be my choice.

You can ask TJ to provide you a few more options as well, if possible.

I shall see the SendSpace contents tonight, if I have the time.

Good luck!

Bro, same as you, surveying.
All the diamonds you stated are around 6k include the setting from TJ?

Hello Infinity,

Sorry for late reply. Just saw the video yesterday the diamond is just like the photos, so I don't have further comment for those.

After looking at the diamond further, based on specs and price alone, diamond 5 will still be my top choice, but based on cut, I think I would go for Diamond 2. Please be reminded that I am only focusing on the diamonds provided in that list. In real life, I won't buy any of these personally.

For Diamond 5, in terms of price, it seems pretty cheap as well. As far as 0.4ct is concerned, I can't seem to find anything that matches that price from WhiteFlash or Brian Gavin diamonds. Although diamond 5 has fluorescence, but I don't think that will affect the price too much. Although it is cheap, but I would encourage you to ask further regarding this diamond, see if TJ can provide further details on the light return and Hearts & Arrows. I believe the cut of this diamond does affect the price, since the Hearts & Arrows is only Very Good (Very Good to me is No Good). If the Hearts & Arrows is too bad, then you can probably skip it too.

Diamond 2 is worth to consider since the Hearts & Arrows is graded as Excellent, but then again, take it with a pinch of salt, until we can see the H&A. The depth of 62.7% is really too deep for my liking though. There will most likely be light leakage. But as far as diamond cut is concerned this should be better than diamond 5. Also, the crown angle should return more fire than Diamond 5. All these reasons are why I have shortlisted it as well.

So here comes my affiliate work: However, for diamond 2's price, I will take Black by Brian Gavin instead: http://www.briangavindiamonds.com/diamonds...?a_aid=myengexp. Although one clarity grade lower, at VVS2, there should be no difference to the naked eye. Also, although this diamond is more expensive than diamond 2 (because we have not factor in shipping price and GST), but it will most certainly outperform any of the diamonds listed here, in various environments. Besides, it is also larger face-up compared to diamond 2. Diamond 2 has a dimension of 4.29 - 4.31 x 2.70 mm, while Black by Brian Gavin here has a dimension of 4.33 X 4.36 X 2.68 mm.  As you can see, Black does not hide the carat size in the depth of the diamond.

The price? USD 836 + USD 55 (approximate shipping with insurance) = USD 891. M2U Forex Exchange Rate is 4.3540. That makes the price in Ringgit to be MYR 3879.41. Add on 6% GST will be RM 4112.17. To be safe, add on RM 50 for misc. charges, if any. So this will make the total to be around RM 4162.17. This will have a difference of RM 546.17 compared to Diamond 2, but I think is worth it, since Black by Brian Gavin is Brian Gavin's pinnacle work. You will however, need to do your setting elsewhere in that case. So I think it will be safe to put your Halo Setting price at RM 2500. This is because if you buy from the same vendor, the price should be cheaper, but since now we are talking about setting a loose diamond, then the price will most likely be different. But RM 2500 will be enough for Halo Setting, I hope. Feel free to check with iDo Jewellery, Eumayco Jewellery, Memory Jewellery and see what is their price for Halo Setting. You can get in touch with them via Facebook.

I have to stress that this is what I will do if I am in your situation, but with more than 6K budget. But in your situation, your budget of 6K for diamond with Halo Setting will limit your options. If you can top-up another RM 1,000, then that be widen up your options, but if your budget is there and you want to stick with it, then I think TJ's option should be fine.

On top of that, you may want to get options from iDo Jewellery, ZCOVA, Eumayco Jewellery, and visit Wah Chan and section 14 PJ as well. There is no need to worry about all the diamonds, just stick to the proportions listed here:
http://myengagementringexperience.blogspot...-brilliant.html, and you will be fine.

Hope this helps. Good luck and all the best!

Haha nope bro. US based vendors usually use AGS. Your gf is smart, no need bang wall. Diamond is one of the bigger purchase, so it is relatively safer to go with the certificate that most people are familiar with. Not saying AGS is no good, but GIA is really everywhere in Malaysia, hence more famous and well known.

TJ will try to sort things our for you, but if you want to have more options, try look for iDo Jewellery. She seems to have take in some new stones.

Wah Chan Section 14 PJ branch is the flagship store, so you will probably have more options over there. They have a Facebook page as well: https://www.facebook.com/wahchansig/. If you have the time, why not drop by as well? Hopefully won't be too troublesome for you.

Keep us posted and all the best bro.