IGI report LG784697854
3.15 ct Old European Laboratory-Grown Diamond
90/100 · Refined
A strong candidate on paper; confirm its light pattern in imagery.
What reads well
- Face-up spread (9.07 × 9.10 mm) is typical or better for a 3.15 ct Old European cut.
- Table 49% and depth 64.1% fall in the typical Old European cut range.
- Excellent polish and symmetry, the top finish grades.
- D color is in the colorless range.
- VVS2 clarity: inclusions are not a practical visual factor.
What deserves a closer look
- Screening only: for this Old European cut, check images or video of the exact stone for the broad, chunky antique flash pattern and how the open culet looks face-up.
- Treatment status is not stated on the report. For a laboratory-grown diamond, ask whether it is as-grown or post-growth treated.
The reading, field by field
- Table · Ideal
- At 49%, the table sits within the typical 45–56% range for an Old European cut, balancing brightness with fire.
- Total depth · Ideal
- 64.1% is within the typical 57–66% range for an Old European cut, keeping weight where it contributes to face-up size and light return.
- Polish · Ideal
- Excellent polish is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
- Symmetry · Ideal
- Excellent symmetry is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
- Girdle · Ideal
- Medium To Slightly Thick (Faceted): a durable girdle thickness that doesn't hide meaningful weight.
- Culet · Ideal
- Large: the open culet traditional to an Old European cut, seen face-up as a small circle at the center and part of its antique character.
- Color · Ideal
- D is in the colorless range and faces up white in any metal.
- Clarity · Ideal
- VVS2: inclusions, if any, are only visible under magnification.
- Fluorescence · Ideal
- None: no meaningful effect on appearance.
What to check on the exact stone
- Does it show the broad, chunky flashes of an antique cut, and how much does the open culet show face-up?
- 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
- 3.15 ct
- Shape
- Old European
- Color
- D
- Clarity
- VVS2
- Cut
- Not stated
- Measurements
- 9.07–9.10 × 5.82 mm
- Table
- 49%
- Depth
- 64.1%
- Crown angle
- 35.5°
- Pavilion angle
- 41.2°
- Girdle
- Medium to slightly thick (faceted)
- Culet
- Large
- Polish
- Excellent
- Symmetry
- Excellent
- Fluorescence
- None