IGI report LG694558246
1.70 ct Round Brilliant Laboratory-Grown Diamond
95/100 · Signature
An unusually disciplined report profile.
What reads well
- Crown 36° with pavilion 40.7° sits in the well-regarded pairing zone for brightness and fire.
- The IGI Excellent cut grade corroborates the measured proportions.
- Excellent polish and symmetry, the top finish grades.
- F color is in the colorless range.
- IF clarity: inclusions are not a practical visual factor.
What to check on the exact stone
- Does this HPHT-grown diamond look neutral white beside another stone in daylight, with no gray or blue cast?
- Can I see this stone in soft daylight away from store spotlights to verify its sparkle?
- Does the sparkle look bright and even all the way out to the edges?
- Can you show me the inscribed report number under a loupe before it is set?
Report facts
- Origin
- Laboratory-grown
- Carat
- 1.70 ct
- Shape
- Round Brilliant
- Color
- F
- Clarity
- IF
- Cut
- Excellent
- Measurements
- 7.57–7.61 × 4.77 mm
- Table
- 56%
- Depth
- 62.7%
- Crown angle
- 36°
- Pavilion angle
- 40.7°
- Girdle
- Medium to slightly thick (faceted)
- Culet
- Pointed
- Polish
- Excellent
- Symmetry
- Excellent
- Fluorescence
- None