Help needed for engagement ring diamond

[treds420]

Hi All.

I could use everyone's knowledge and advice picking out a diamond for my gf. Here is one that I am leaning toward. What are y'all's thoughts?

My biggest question is regarding the measurements, cut, crown, pavillion, etc.

Is this diamond going to look true to it's carat? Meaning look the size that its supposed to look
Will it face large?
Will it have brilliance and sparkle?

I understand a lot of this is determined by seeing the actual diamond but just looking to get opinions based on specs.

Thanks

Here is the link:

http://www.solomonbrothers.com/DiamondDetail.aspx?sku=6838Y856&affiliate=9318613A-AD0C-4530-A456-0409DFEFB8DE%20&utm_source=PriceScope

http://www.solomonbrothers.com/Dialog.aspx?ImageUrl=http://certs.rapnet.com/userfolders/8258/Certs/RB16568.jpg

 

[ecf8503]

Looks promising on paper. It scores a 1.7 on the HCA (https://www.pricescope.com/tools/hca) with excellent ratings for light return, fire, and scintillation, and very good on spread (which is normal). Does Ritani provide Idealscope images?