IGI report LG816616362
1.50 ct Cushion Laboratory-Grown Diamond
83/100 · Considered
A balanced profile with a few questions to carry forward.
What reads well
- Excellent polish and symmetry, the top finish grades.
- D color is in the colorless range.
- FL clarity: inclusions are not a practical visual factor.
- No fluorescence: no haze risk to weigh.
- The report states no indication of post-growth treatment.
What deserves a closer look
- A 1.46:1 length-to-width ratio is outside the classic cushion range; the outline will look more elongated than typical.
- Screening only: bow-tie, windowing and contrast in a cushion can only be judged from images or video of this exact stone.
What to check on the exact stone
- With 70.2% depth, does this stone face up smaller than a typical 1.50 ct cushion?
- Does this cushion produce broad, chunky flashes or small needle-like crushed-ice sparkle?
- Does this HPHT-grown diamond look neutral white beside another stone in daylight, with no gray or blue cast?
- Can you show me the inscribed report number under a loupe before it is set?
Report facts
- Origin
- Laboratory-grown
- Carat
- 1.50 ct
- Shape
- Cushion
- Color
- D
- Clarity
- FL
- Cut
- Not stated
- Measurements
- 8.16 × 5.57 × 3.91 mm
- Table
- 63%
- Depth
- 70.2%
- Crown angle
- Not stated
- Pavilion angle
- Not stated
- Girdle
- Medium to thick (faceted)
- Culet
- Pointed
- Polish
- Excellent
- Symmetry
- Excellent
- Fluorescence
- None