is this a bad diamond ?

[Amccaffery89]

Round brilliant
Carat 1.00
Color I
Clarity SI1
Polish good
Symmetry very good
Fluorescence none
Cut good



Measurements 6.22x6.26x3.96
Girdle thick to very thick
Star length 55%
Table 58%
Total depth 63.4
Crown height 15%
Pavilion depth 42%
Crown angle 36
Pavilion angle 40.2
Lower girdle 80%
Cutlet very small

 

[diamondseeker2006]

Yes, it is not a good diamond. For example, the depth and thick girdle make it appear like a .90 diamond (in diameter), so you'd be far better off finding a well cut .90.

Start with GIA Excellent cut only. It is a broad range and there are many we wouldn't recommend even within that range.

These are measurements to help you stay in ideal cut territory with a GIA excellent cut stone.

table: 54-58

depth: 60-62.3

crown angle: 34-35.0

pavilion angle: 40.6-40.9 (sometimes 41.0)

 

[John P]

Round brilliant
Carat 1.00
Color I
Clarity SI1
Polish good
Symmetry very good
Fluorescence none
Cut good

Measurements 6.22x6.26x3.96
Girdle thick to very thick
Star length 55%
Table 58%
Total depth 63.4
Crown height 15%
Pavilion depth 42%
Crown angle 36
Pavilion angle 40.2
Lower girdle 80%
Cutlet very small

Additional comments about this diamond in your other thread, in case you missed them:

https://www.pricescope.com/community/threads/is-this-a-fisheye.218909/