Hello!
My 5 year old engagement ring has a 0.86c RB diamond in a solitaire setting with side stones (picture attached). I'm not a big fan of the current setting, so I'm definitely changing that (thinking about a cushion halo). I'm also debating changing the center stone because I feel like this one lacks sparkle (it looks sort of like glass). However, I would prefer not to for sentimental reasons. Is it possible that the lack of sparkle is due to the setting, rather than some flaw inherent to the diamond? And if it is the diamond, what specifically is the issue- so I can avoid it when I get my new one. I'm including the specs from the EGL certificate below. In case it matters my ring size is 3.5-3.75.
Weight: 0.86 cts
Shape and cut: Round brilliant
Measurements: 6.13-6.13 X 3.72 mm
Total depth: 60.7%
Total width: 61%
Crown height: 13%, crown angle: 33.5 degree
Pavilion depth: 44%
Girdle thickness: thin
Polish: excellent
Symmetry: excellent
Culet: none
Clarity grade: VS2
Graining: nil
Color grade: K
Fluorescence: none
Comments
8 Hearts and 8 arrows
Excellent ideal cut
Clarity enhanced
I'm not a big jewellery wearer, so any insights that I can get will be invaluable. Thanks!

My 5 year old engagement ring has a 0.86c RB diamond in a solitaire setting with side stones (picture attached). I'm not a big fan of the current setting, so I'm definitely changing that (thinking about a cushion halo). I'm also debating changing the center stone because I feel like this one lacks sparkle (it looks sort of like glass). However, I would prefer not to for sentimental reasons. Is it possible that the lack of sparkle is due to the setting, rather than some flaw inherent to the diamond? And if it is the diamond, what specifically is the issue- so I can avoid it when I get my new one. I'm including the specs from the EGL certificate below. In case it matters my ring size is 3.5-3.75.
Weight: 0.86 cts
Shape and cut: Round brilliant
Measurements: 6.13-6.13 X 3.72 mm
Total depth: 60.7%
Total width: 61%
Crown height: 13%, crown angle: 33.5 degree
Pavilion depth: 44%
Girdle thickness: thin
Polish: excellent
Symmetry: excellent
Culet: none
Clarity grade: VS2
Graining: nil
Color grade: K
Fluorescence: none
Comments
8 Hearts and 8 arrows
Excellent ideal cut
Clarity enhanced
I'm not a big jewellery wearer, so any insights that I can get will be invaluable. Thanks!
