Need help choosing a RBC (1.73 J vs 2.04 J)

[cowcow81]

Hi,

I'm in search of a round brilliant diamond, below are two that i'm considering, they are shallower compared to my engagement ring which is an ideal cut hearts and arrows RB, but they scored really well on the HCA tool. I would appreciate any feedback or education on shallower cut performance, or should I forget them and stick to the traditional ideal cut (table 57%, etc etc.)

1.73 J VS1 ~$10k
measurement 7.78 x 7.80 x 4.69
GIA EX EX EX
Fluorescence - None
Table 59%
Crown 33%
Pavillion 41%
Depth 60.2%
Girdle Medium to slightly thick 3.5%
culet none

2.04 J SI1 ~$12k
measurement 8.24 x 8.26 x 4.94
GIA EX EX EX
Fluorescence - Medium Blue
Table 59%
Crown 33%
Pavillion 41%
Depth 59.9%
Girdle Thin to Medium 3%
Culet none

Are any of them worth considering? If so, which one is better?

Thank you all for your time and input in advance!!

 

[mcosme]

Hello
Personally I would stick to the traditional ideal cut since you are buying such a large stone. I just did a quick search on Blue nile and found a stone around 10k but within ideal parameters, 1.74 carat.

https://www.bluenile.com/au/diamond-details/LD07783545

Just my 2 cents, as I love a fiery stone so a shallow crown angle of 33 would have less of it

 

[SimoneDi]

I actually have a little different opinion here. From the two posted, I would actually go for the 2nd if the ASET is good. I have ideal cut stones that fall in the standard parameters, but my first diamond had an appx. 59% depth and just under 33 degree angle and I loved its spread! It was again an AGS 000. For 2k more you are getting a lot bigger stone. Also, the blue flouro will help with the color. I would ask the vendor if the fluorescence has any negative visual impact and also ask if the stone is eye-clean. Can you get an ASET on this stone?

 

[ac117]

For me, it would also depend on what inclusions are in the SI1? Clouds or twinning wisps can sometimes cause transparency issues - I would recommend asking the vendor to inspect the stone and confirm it's eye clean, with no transparency issues and no negative effects from the fluorescence (which I'm 100% in favor of, but it never hurts to ask).

 

[cowcow81]

Thank you for the feedback! The 1.74 on bluenile does look really good, I will consider.

Hello
Personally I would stick to the traditional ideal cut since you are buying such a large stone. I just did a quick search on Blue nile and found a stone around 10k but within ideal parameters, 1.74 carat.

https://www.bluenile.com/au/diamond-details/LD07783545

Just my 2 cents, as I love a fiery stone so a shallow crown angle of 33 would have less of it

 

[cowcow81]

Hi, thank you for the reply! Do you prefer the look of the shallower stone or the standard ideal cut? How do the light return differ since you have both kinds? I haven't seen a shallower stone in person so I have no idea how the light performance will be hence i'm on here asking for opinions. I initially chose these two stones because I felt I was getting more spread for the $$ but I don't want to settle for a less lively/fiery looking diamond either since I'm used to my engagement ring being a true H&A diamond. Do you still have your 59% depth stone or you got rid of it for lack of performance? (sorry if this question seems very blunt, I don't mean to be rude)

I'm still waiting for the image for the 2.04 and they said the in-house gemologist will confirm if it's eye clean or not so we'll see.

Since there is a $2k price difference, would I be able to see a size difference between the two stones? If not, maybe i should stick to the cheaper one?

Thanks again!

I actually have a little different opinion here. From the two posted, I would actually go for the 2nd if the ASET is good. I have ideal cut stones that fall in the standard parameters, but my first diamond had an appx. 59% depth and just under 33 degree angle and I loved its spread! It was again an AGS 000. For 2k more you are getting a lot bigger stone. Also, the blue flouro will help with the color. I would ask the vendor if the fluorescence has any negative visual impact and also ask if the stone is eye-clean. Can you get an ASET on this stone?

 

[cowcow81]

Thanks for the reply! I suppose my subject line is a little misleading, first and foremost I'm trying to see if shallower stones are worth being considered since I have a H&A diamond for my existing engagement ring and i like the light return, if the answer is yes then I'm trying to decide between the two which your answer below helps.

Could you shed some light on my first question if you know how the light performance will be compared to traditional H&A (table 57% etc.)? I figured...worst case I buy the stone and return it if I can't get any good images or videos but it's so much hassle to do so.

For me, it would also depend on what inclusions are in the SI1? Clouds or twinning wisps can sometimes cause transparency issues - I would recommend asking the vendor to inspect the stone and confirm it's eye clean, with no transparency issues and no negative effects from the fluorescence (which I'm 100% in favor of, but it never hurts to ask).