62.9% depth. It is cut too deep. Try to max at around 62%: http://beyond4cs.com/truth-about-gia-tripl...llent-diamonds/

And try to make the pavilion depth just below 43.5%.
Quote from: http://niceice.com/diamond-grading-101/obs...light-diamonds/
"One of the factors that could be creating this effect is the 43.5% pavilion depth. Remember that I consider that to be “the critical tipping point” where light begins not to fully strike off the pavilion facets."

This post has been edited by kambingkoh: Mar 6 2017, 12:00 PM

it looks symmetrical to me when i look it under the scope...

they marketing their diamonds as a cut above the ideal cut....

the ring setting is around 1.2k...


i guess i need to survey more stones.... targeting for 0.5 carat with E or F color and clarity under VS2

Did you see from the bottom of the diamond? How the hearts look like?
As for your VS2, is it exluding VS2 or including?

Mosy importantly, you have seen the diamonds, how do you feel about each invidiual diamond?

This post has been edited by kambingkoh: Mar 6 2017, 01:08 PM

4.0 on the HCA score. My suggestion: AVOID.

Why?

1. Depth: Too deep.
2. Table: Ok.
3. Crown and pavilion: Not ok. Causes the most light leakage.

could be my eyes issue... all the hearts n arrow looks the same to me....

actually i wanted to say above n including VS2

out of the 3, two of them r G color which i kinda of dislike...

the other 1 is slightly less than 0.5 carat n have feather in the characteristic which could b an issue in the future...

i tried looking at the HCA but dun really get the idea of the representation...

HCA is just a reference tool to reject stone that fall below a certain value. By standard practice, we are advised to filter out diamonds that score 2 and above. The higher the score, the more you should avoid the diamond. The general rule is to focus on diamonds that has a score that falls below 2.0.

Ok, let's take a look at the options you provided:


GIA 1: https://www.gia.edu/cs/Satellite?reportno=6...d=1355954554547

HCA:
Light Return: Very Good
Fire: Very Good
Scintillation: Very Good
Spread: Very Good
Score: 2.7 - Very Good - Worth buying if the price is right


GIA 2: https://www.gia.edu/cs/Satellite?reportno=2...d=1355954554547

HCA:
Light Return: Very Good
Fire: Very Good
Scintillation: Very Good
Spread: Very Good
Score: 2.7 - Very Good - Worth buying if the price is right


GIA 3: https://www.gia.edu/cs/Satellite?reportno=1...d=1355954554547

HCA:
Light Return: Very Good
Fire: Very Good
Scintillation: Very Good
Spread: Very Good
Score: 2.3 - Very Good - Worth buying if the price is right


Ok, let's take a look at some of the best diamonds you can buy at WhiteFlash:

Here you can take a look at some of the best diamonds around, with all the images for your reference:
0.523 ct D VVS2 A CUT ABOVE® Hearts and Arrows Diamond
http://www.whiteflash.com/loose-diamonds/r...id=myengringexp (affiliate link)
The money is on the high side for this one to be honest at USD 2777, with discount of USD 25 for new purchaser, the final price will be USD 2752. Include GST will be around a whopping RM 13,185.38. Together with a setting from Memory Jewellery, or any other jeweller in Malaysia, the final price can be around RM 14,185.38 - RM 15,185.38.

HCA:
Light Return: Excellent
Fire: Excellent
Scintillation: Excellent
Spread: Very Good
Score: 1.4 - Excellent within TIC range

Here you can take a look at some more affordable option:
0.54 ct D VS2 A CUT ABOVE® Hearts and Arrows Diamond
http://www.whiteflash.com/loose-diamonds/r...id=myengringexp (affiliate link)
The price for this diamond is USD 2593, with discount of USD 25 for new purchaser, the final price will be USD 2568. Include GST will be around RM 12,303.80. The final price with simple solitaire setting will be around RM 13,303.80 - RM 14,303.80. The performance of this diamond is great and the hearts and arrows are not bad in comparison to some other 0.5x WhiteFlash ACAs. The only downside for this diamond is probably the feather and the needle around the edge. But at VS2, it should be relatively safe. Looking at the price, I would probably top-up the difference and go for the smaller VVS2 above.

HCA:
Light Return: Excellent
Fire: Excellent
Scintillation: Excellent
Spread: Very Good
Score: 1.5 - Excellent within TIC range

After taking sometime to take a look, I think this is the one I will probably buy myself:
0.516 ct E VS1 A CUT ABOVE® Hearts and Arrows Diamond
http://www.whiteflash.com/loose-diamonds/r...id=myengringexp (affiliate link)
The hearts and arrows look great and the light return is great. For this diamond, I have also checked the AGA/NAGA Cut Class Grader. The score is 1A, as expected. Just that the girdle score 1B, because of Thin to Slightly Thick, but I won't really mind this because the images give me enough confidence. The price is USD 2479, with discount of USD 25 for new purchaser, the final price will be USD 2454. Include GST will be around RM 11,757.60. The final price with simple solitaire setting will be around RM 12,757.60 - RM 13,757.60.

HCA:
Light Return: Excellent
Fire: Excellent
Scintillation: Excellent
Spread: Very Good
Score: 1.3 - Excellent within TIC range

This post has been edited by kambingkoh: Mar 6 2017, 10:52 PM

Not many people can accept G colour cuz this is where the yellowish tint start to be discernible to the naked eye. But as you can see from the images below, the slight yellowish tint can only be seen if you view the diamond from the side. If your diamond is an ideal cut, you can't really differentiate from the top view because its sparkle and fire will mask its body colour very well.





Left: 0.57 G VS1. Right: 0.54 E VS1. Both are Octagon H&A.

So people will usually go for G colour diamonds to maximise their carat weight.

Thanks for the detailed explanation, sifu...

Will seek out more stones for comparison... i saw a few stones on whiteflash that is around 10k+ after GST...

i also requested a jeweler to source some stones for me based on my citeria.... need to wait for the results...

my mind issue that I canot accept G color due to the fact tat i know, there is yellowish tint in it....

wanted at least a perfect color for my future wifey... at least no regret later on.....

Ahhhh, I understand! Only the best for your future wife ehh bro?

Yup. Don't say G. Even F can have some very slight hint of yellowish tint, just that F provides mind clean because it is in the "Colourless" range. But then, when I view mine from the top view, those normal D also need to move aside. Haha.

Octagon H&A eh? Should be from Jann Paul. So nice to be in Singapore.

Yes, those two are from JannPaul. One thing good about them is that they don't mind letting their customers snap as many photos as they want. I took nearly 100 shots of the diamonds + scope images I viewed over a few months there. Plus another 50 or so photos of their settings. Hahaha.

Whereas typical jewellery shops seldom allow this, something which I don't understand.

The more you know, the lesser you would want to buy from them mah. Haha...

Ahhhh I see. Make sense jugak!

Attached thumbnail(s)

Very nice bro! Congrats!

It seems that a well cut half carat pear diamond will always look BIGGER than a half carat round brilliant diamond.

That sealed the deal for me. Lol..!!

Then there's the prong design. Some designs end up hiding a lot of the diamond when viewed from the side, which I don't like. Some got fugly thick prongs. It buries the stone & makes it look smaller, IMHO.

Some designs showcase & elevate the stone in all its glory, the prongs don't get in the way much. In the case of pear diamonds, this way you get to see a hell lot more of the rock which makes the ring a real stunner.

Cheers!

You are right on the face-up size.

Nice. Mind sharing where you bought the ring setting and the diamond?

This practically explains why you cannot rely solely on HCA score alone. This also shows that proportions alone cannot determine how good a diamond really is. Both HCA and proportions can only help to shortlist, not choose. Great work to Jann Paul for selecting diamonds that fall within super ideal proportions for comparison.



This post has been edited by kambingkoh: Mar 8 2017, 10:43 PM