Need help on choosing an engagement ring, 4 options

[Lunar11]

I am picking in between these four diamonds, I am looking for the best quality and best light performance. There is one from HPD that is a bit out of budget but with a bigger size and crafted by infinity cut, which I heard is considered the best when it comes to diamond cuts. Is it worth the extra money for the cut and size? Which one will you pick?

https://www.bluenile.com/build-your-own-ring/diamond-details/LD11545243

https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3746447.htm?a_aid=pd

https://www.hpdiamonds.com/en-us/diamonddetail/HPD9773

https://www.hpdiamonds.com/en-us/diamonddetail/HPD10625

Does super ideal cut really make a visible difference when it comes to light performance comparing to an ideal or excellent cut? Are AGS cert better than GIA when searching for the best diamond?

 

[Morenita21]

Are you stuck on clarity and color? I see from the listings that color is either def and clarity is overkill especially with a small diamond. Personally, I prefer to go down on clarity as long as it is 100% eye clean and when purchasing an excellent cut round brilliant diamond you can go down to H/I color and it still is very white. This way, you could get a larger carat size. What is most important to you? That is the question.

 

[lovedogs]

HPD guarantees all their diamonds are eye clean, even the SI1/SI2. So you don't need such high clarity, especially in a smaller stone. These stones also face up whiter bc of cut, so I wouldn't feel forced to sticking with D/E/F.

 

[lovedogs]

And yes, I think CBI is worth the extra cost. 100%.

Edit. If my budget were 3k, I would buy this one
https://www.hpdiamonds.com/en-us/diamonddetail/HPD10392

 

[lovedogs]

Actually I take that back. If my budget was 3k, I would want more size. I'd go with WF.

https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-4095767.htm


Or (if my intended wasn't super color sensitive or if I were setting in yellow or rose gold)
https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-4094462.htm