3D ray-traced simulation from certificate proportions. Not a photo of this stone. Accurate representation of optical performance, but it does not account for facet variations and does not show clarity or inclusions. See more.
1.62 ct E VS1 Round Lab-Grown Diamond
$980.00
Pass87.6grade score
- Carat
- 1.62
- Colour
- E
- Clarity
- VS1
- Cut
- Ideal
Polish Excellent · Symmetry Excellent · Fluorescence None
Triple Excellent on the report. *Why this does not matter
Compare with another stone How we grade
Details
- Report
- IGI LG786667408 · Verify at IGI
- Placement
- Brightness
- Table
- 58.0%
- Depth
- 60.0%
- Crown
- 33.0°
- Pavilion
- 40.9°
- Measurements
- 7.61 – 7.68 × 4.58 mm
- Growth
- CVD
The pavilion runs 0.23° shallow for its crown. A 33.0° crown at a 58.0% table wants 41.12°; this has 40.9°. Under-returned: flatter white glare, less depth of pattern than the geometry could deliver. Not a defect you would name across a counter, but it is performance left on the table.
Strongly brightness-biased (lean 0/100). The shallow crown and large table return light white rather than splitting it. Bright and clean indoors and under overcast sky, and it photographs well — but little fire under spotlights, and watch for a flat, glassy look if the contrast pattern is weak. Judge it in everyday diffuse light before concluding — that is where this make earns its keep.
The 58.0% table is larger than this crown implies — a 33.0° crown belongs with a 56.0–57.5% table. Mixed intent from the cutter, usually weight retention. It will read less decisively as either style.
From the certificate text: the comments carry no treatment statement either way — worth asking the vendor, since most CVD stones receive post-growth HPHT decolourising.
It sits on a gate edge — crown 33.0° on the 33.0° floor; table 58.0% on the 58.0% ceiling; depth 60.0% on the 60.0% floor. IGI reports to a step wide enough that the true value could be on either side of the line. Treat the pass as provisional and let a re-measure settle it.
Passes well — score 87.6. Sound, well-balanced geometry; the certificate numbers give no reason for hesitation.
Strongly brightness-biased (lean 0/100). The shallow crown and large table return light white rather than splitting it. Bright and clean indoors and under overcast sky, and it photographs well — but little fire under spotlights, and watch for a flat, glassy look if the contrast pattern is weak. Judge it in everyday diffuse light before concluding — that is where this make earns its keep.
The 58.0% table is larger than this crown implies — a 33.0° crown belongs with a 56.0–57.5% table. Mixed intent from the cutter, usually weight retention. It will read less decisively as either style.
From the certificate text: the comments carry no treatment statement either way — worth asking the vendor, since most CVD stones receive post-growth HPHT decolourising.
It sits on a gate edge — crown 33.0° on the 33.0° floor; table 58.0% on the 58.0% ceiling; depth 60.0% on the 60.0% floor. IGI reports to a step wide enough that the true value could be on either side of the line. Treat the pass as provisional and let a re-measure settle it.
Passes well — score 87.6. Sound, well-balanced geometry; the certificate numbers give no reason for hesitation.
The score, Pass and Fail are our own assessment of the proportions printed on the laboratory report. They are not a laboratory grade. The report itself is the laboratory's; the link above opens it on the laboratory's own site. Questions and method.