IGI report LG756527774
2.55 ct Round Brilliant Laboratory-Grown Diamond
84/100 · Refined
A strong, composed candidate on paper.
What reads well
- Excellent polish and symmetry, the top finish grades.
- D color is in the colorless range.
- VVS2 clarity: inclusions are not a practical visual factor.
- No fluorescence: no haze risk to weigh.
- Medium to slightly thick girdle balances durability and weight retention.
What deserves a closer look
- Crown 34° / pavilion 41.7° fall outside the pairing zone associated with strong light return.
- Table 63% sits outside the preferred round range.
- Treatment status is not stated on the report. For a laboratory-grown diamond, ask whether it is as-grown or post-growth treated.
- Not stated on the report: cut grade. This is not assumed to be favorable, and confidence is lower.
The reading, field by field
- Table · Closer look
- A 63% table is larger than typical for a round brilliant (53–59%). Large tables can read bright but flatter, with less fire and contrast.
- Total depth · Closer look
- 59.3% is shallower than typical for a round brilliant (59.5–63%). That spreads the stone face-up but raises the risk of windowing — a glassy, see-through center.
- 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
- Pointed: no visible culet facet when viewed face-up.
- 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
- With a shallow 59.3% depth, can you see a glassy, see-through patch in the center?
- Does the large table look bright but flat, with less colored fire than you expected?
- 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
- 2.55 ct
- Shape
- Round Brilliant
- Cut grade
- Not stated
- Color
- D
- Clarity
- VVS2
- Measurements
- 8.77–8.79 × 5.20 mm
- Table
- 63%
- Total depth
- 59.3%
- Crown angle
- Not stated
- Pavilion angle
- Not stated
- Polish
- Excellent
- Symmetry
- Excellent
- Girdle
- Medium to slightly thick (faceted)
- Culet
- Pointed
- Fluorescence
- None