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.
1.02 ct D VVS2 Round Lab-Grown Diamond
$790.00
Exceptional98.3grade score
- Carat
- 1.02
- Colour
- D
- Clarity
- VVS2
- 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 LG813679975 · Verify at IGI
- Placement
- Balanced
- Table
- 57.0%
- Depth
- 61.5%
- Crown
- 34.3°
- Pavilion
- 40.8°
- Measurements
- 6.47 – 6.49 × 3.99 mm
- Growth
- HPHT
Crown 34.3° and pavilion 40.8° are properly complementary. At a 57.0% table a 34.3° crown calls for 40.84° of pavilion and this stone delivers 40.8° — off by 0.04°. Light entering the crown is turned back through the table rather than leaking out of the pavilion. This is the one thing a round brilliant must get right, and it does. It sits on the locus Sasián et al. (2007) identified as the best-performing set, and that Cowing (2005) calls the axis of Excellent.
Brightness-leaning (lean 40/100). Whiter, more mirror-like return with less coloured flash. Reads well in diffuse everyday light and photographs cleanly — which matters if it sells from images.
From the certificate text: comments state As Grown — no indication of post-growth treatment.
Top tier — score 98.3. The geometry is as strong as certificate numbers can show: crown and pavilion in proper complement, the table where it belongs. This is the standard haus1919 curates to, and this stone clears it with room to spare. What remains — inclusion position and optical symmetry — is confirmed on the actual stone, which no certificate can show.
Brightness-leaning (lean 40/100). Whiter, more mirror-like return with less coloured flash. Reads well in diffuse everyday light and photographs cleanly — which matters if it sells from images.
From the certificate text: comments state As Grown — no indication of post-growth treatment.
Top tier — score 98.3. The geometry is as strong as certificate numbers can show: crown and pavilion in proper complement, the table where it belongs. This is the standard haus1919 curates to, and this stone clears it with room to spare. What remains — inclusion position and optical symmetry — is confirmed on the actual stone, which no certificate can show.
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.