IGI report LG789613629
2.66 ct Emerald Laboratory-Grown Diamond
93/100 · Signature
An unusually disciplined report profile.
What reads well
- A 1.45:1 length-to-width ratio sits in the classic emerald cut range.
- Face-up spread (9.59 × 6.61 mm) is typical or better for a 2.66 ct emerald cut.
- Table 64% and depth 66.1% fall in the typical emerald cut range.
- Excellent polish and symmetry, the top finish grades.
- D color is in the colorless range.
What deserves a closer look
- Screening only: for this emerald cut, check images or video of the exact stone for the "hall of mirrors" step pattern, any see-through window under the table and clean corners.
The reading, field by field
- Table · Ideal
- At 64%, the table sits within the typical 60–69% range for an emerald cut, balancing brightness with fire.
- Total depth · Ideal
- 66.1% is within the typical 60–69% range for an emerald cut, keeping weight where it contributes to face-up size and light return.
- Length-to-width · Ideal
- A 1.45:1 outline is within the classic 1.3–1.5:1 range for an emerald cut.
- 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: a durable girdle thickness that doesn't hide meaningful weight.
- Culet · Ideal
- Long: a keel-line culet, normal for elongated step and modified cuts.
- Color · Ideal
- D is in the colorless range and faces up white in any metal.
- Clarity · Ideal
- VVS1: inclusions, if any, are only visible under magnification.
- Fluorescence · Ideal
- None: no meaningful effect on appearance.
- Cut grade · Ideal
- Excellent as issued by IGI, on IGI's own scale. The measured proportions above tell you more than the label.
What to check on the exact stone
- With open step facets, is the center completely eye-clean without any visible dark marks?
- 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
- 2.66 ct
- Shape
- Emerald
- Color
- D
- Clarity
- VVS1
- Cut
- Excellent
- Measurements
- 9.59 × 6.61 × 4.37 mm
- Table
- 64%
- Depth
- 66.1%
- Crown angle
- Not stated
- Pavilion angle
- Not stated
- Girdle
- Medium
- Culet
- Long
- Polish
- Excellent
- Symmetry
- Excellent
- Fluorescence
- None