miraj
Rough_Rock
- Joined
- Sep 16, 2015
- Messages
- 78
I made a list of criteria to meet my objective for a diamond for an engagement ring based on my research. Am I missing things? Am I asking too much? I being reasonable, unreasonable, obsessive...? And if you have suggestions for specific diamonds and the price I should be looking at, please pass them along!
Objective: To pay the least for a large-appearing round diamond that sparkles like crazy and will last forever without unsightly imperfections (when viewed without magnification) and no maintenance.
Shape: Round Brilliant, 57 facets
Cut: Ideal (AGS) or Excellent (GIA)
Carat: 1.85 to 2.1 (preferred: 2.0ct)
Clarity: VS1 to SI2
Color: G to I
Certificate: GIA or AGS
Must be:
Table: 54.0% to 57.0%
Depth: 61.0% to 62.0%.
Pavilion Angle: 40.6° to 41.0°
Crown Angle: 34.3° to 34.9°
Culet: Pointed (AGS) or None (GIA)
Girdle range: Thin to Slightly Thick
Fluorescence: None to Medium
Lesser importance:
Lower girdle facets: 75% to 78%
Star facets: 45% to 50% (40% to 58% may be okay)
Diameter: at least 8.0 mm
Diameter Ratio: 0.99-1.01
When available:
Symmetry (AGS): Excellent to Ideal
Polish (AGS): Very Good to Ideal
Objective: To pay the least for a large-appearing round diamond that sparkles like crazy and will last forever without unsightly imperfections (when viewed without magnification) and no maintenance.
Shape: Round Brilliant, 57 facets
Cut: Ideal (AGS) or Excellent (GIA)
Carat: 1.85 to 2.1 (preferred: 2.0ct)
Clarity: VS1 to SI2
Color: G to I
Certificate: GIA or AGS
Must be:
- conflict-free
- eye-clean
- very crisp / no haze that is eye-visible or significantly affects light performance
- no inclusions that could compromise durability, integrity, or increase risk after decades of normal wear (e.g. feathers that reach the surface or near the girdle, cavities/chips near the girdle)
- no inclusions that require cleaning or maintenance (e.g. cavities, chips, indented natural)
- HCA score < 2.0
- no “enhancements” or lasering
- natural, not lab-grown
- no visual degradation (e.g. haziness/lack of crispness or sharpness) due to fluorescence
Table: 54.0% to 57.0%
Depth: 61.0% to 62.0%.
Pavilion Angle: 40.6° to 41.0°
Crown Angle: 34.3° to 34.9°
Culet: Pointed (AGS) or None (GIA)
Girdle range: Thin to Slightly Thick
Fluorescence: None to Medium
Lesser importance:
Lower girdle facets: 75% to 78%
Star facets: 45% to 50% (40% to 58% may be okay)
Diameter: at least 8.0 mm
Diameter Ratio: 0.99-1.01
When available:
Symmetry (AGS): Excellent to Ideal
Polish (AGS): Very Good to Ideal