IGI report LG602394367
3.05 ct Oval Laboratory-Grown Diamond
89/100 · Refined
A strong candidate on paper; confirm its light pattern in imagery.
What reads well
- A 1.42:1 length-to-width ratio sits in the classic oval range.
- Face-up spread (11.73 × 8.28 mm) is typical or better for a 3.05 ct oval.
- Table 61% and depth 60.7% fall in the typical oval range.
- Excellent polish and symmetry, the top finish grades.
- IF clarity: inclusions are not a practical visual factor.
What deserves a closer look
- I color in a 3.05 ct oval may show some warmth, especially at the tips.
- Screening only: for this oval, check images or video of the exact stone for the bow-tie (a dark band across the centre) and whether both ends look even.
The reading, field by field
- Table · Ideal
- At 61%, the table sits within the typical 53–63% range for an oval, balancing brightness with fire.
- Total depth · Ideal
- 60.7% is within the typical 58–63.5% range for an oval, keeping weight where it contributes to face-up size and light return.
- Length-to-width · Ideal
- A 1.42:1 outline is within the classic 1.3–1.5:1 range for an oval.
- 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 · Favorable
- I may show slight warmth at the tips of an oval, especially next to white metal. Yellow or rose gold tends to complement it.
- Clarity · Ideal
- Internally Flawless (IF): 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
- In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
- 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
- 3.05 ct
- Shape
- Oval
- Cut grade
- Excellent (IGI)
- Color
- I
- Clarity
- IF
- Measurements
- 11.73 × 8.28 × 5.03 mm
- Table
- 61%
- Total depth
- 60.7%
- Crown angle
- Not given for this shape
- Pavilion angle
- Not given for this shape
- Polish
- Excellent
- Symmetry
- Excellent
- Girdle
- Medium to slightly thick (faceted)
- Culet
- Pointed
- Fluorescence
- None