Help and opinions needed on this cushion cut

[diamondnovice86]

Hi there

I am looking to propose to my long time girlfriend and have my eyes on a ritani ring that I am looking to purchase. I would most likely to go through with this purchase in the next day or two since I already have a date picked out and planned for my proposal..And before my purchase, I am hoping to get some feedback/guidance relates to Ritani as a brand and the specs of the center diamond.

This is the center stone that I have picked out for a French Halo setting.

http://www.ritani.com/diamonds/cushion-diamond-0-78-Carat-F-color-GIA-certified/D-MPQRS9

the setting I am going with

http://www.ritani.com/engagement-ri...-band-engagement-ring-in-18kt-white-gold/4573

The specs of the diamond is as follow:

Measurement: 5.30 x 5.21 x 3.48mm

CUT: Very Good

COLOR: F

CLARITY: VVS1

POLISH:EX

SYM:VG

FLUOR:N

Base on your experience and expertise, would this make a good diamond as the center stone and provide a good sparkle?

Any feedback and perspective you can provide is greatly appreciated!

 

[Gypsy]

The diamond has performance problems.

 

[Gypsy]

I just looked and none of the cushions diamonds at Ritani under 3000 and over .70 carats are worth buying.

This one faces up the same size at 5.3 mm square and is a much better choice http://www.bluenile.com/diamond-search?pt=sig&track=NavDiaSigCU#diamonds_pid=LD03863911

This one too: http://www.bluenile.com/diamond-search?pt=sig&track=NavDiaSigCU#diamonds_pid=LD03805795

You can buy one of these and send to Ritani for setting.

 

[Gypsy]

This is also a lovely option:
http://www.goodoldgold.com/diamond/11724/

 

[diamondnovice86]

Thanks for your feedback! When you mentioned the diamond has performance problems, what does that mean? Does that mean the diamond is not well cut and will affect the sparkle?

I am also considering these two round cut as well. Do you think they will have performance problems?

http://www.ritani.com/diamonds/round-diamond-0-77-Carat-F-color-GIA-certified/D-MP52NF

CUT: Ideal
COLOR:F
CLARITY:VS1
POLISH:EX
SYM.:VG
FLUOR.:N

5.83x5.86x3.65


http://www.ritani.com/diamonds/round-diamond-0-75-Carat-F-color-GIA-certified/D-VYWP10

CUT:Ideal
COLOR:F
CLARITY:VS2
POLISH:EX
SYM.:VG
FLUOR.:N

5.74 x 5.80x 3.62


Thanks!