IGI report LG770682303
1.51 ct Radiant Laboratory-Grown Diamond
88/100 · Refined
A strong candidate on paper; confirm its light pattern in imagery.
What reads well
- Face-up spread (8.74 × 5.49 mm) is typical or better for a 1.51 ct radiant.
- Table 63% and depth 64.1% fall in the typical radiant range.
- Excellent polish and symmetry, the top finish grades.
- E color is in the colorless range.
- VS1 clarity is typically eye-clean in a radiant.
What deserves a closer look
- A 1.59:1 length-to-width ratio is outside the classic radiant range; the outline will look more elongated than typical.
- Screening only: for this radiant, check images or video of the exact stone for the sparkle pattern (defined flashes or "crushed ice") and any dark or see-through corners.
- Treatment status is not stated on the report. For a laboratory-grown diamond, ask whether it is as-grown or post-growth treated.
What to check on the exact stone
- Does this CVD diamond show any brown or gray undertone face-up in daylight?
- Can you show me the inscribed report number under a loupe before it is set?
Report facts
- Origin
- Laboratory-grown
- Carat
- 1.51 ct
- Shape
- Radiant
- Color
- E
- Clarity
- VS1
- Cut
- Not stated
- Measurements
- 8.74 × 5.49 × 3.52 mm
- Table
- 63%
- Depth
- 64.1%
- Crown angle
- Not stated
- Pavilion angle
- Not stated
- Girdle
- Slightly thick
- Culet
- Pointed
- Polish
- Excellent
- Symmetry
- Excellent
- Fluorescence
- None