The Carat Standard

IGI report LG770636846

1.50 ct Oval Laboratory-Grown Diamond

88/100 · Refined

A strong candidate on paper; confirm its light pattern in imagery.

What reads well

  • A 1.37:1 length-to-width ratio sits in the classic oval range.
  • Face-up spread (8.84 × 6.47 mm) is typical or better for a 1.50 ct oval.
  • Excellent polish and symmetry, the top finish grades.
  • D color is in the colorless range.
  • VVS2 clarity: inclusions are not a practical visual factor.

What deserves a closer look

  • The table 51% sits outside the typical oval range.
  • Screening only: bow-tie, windowing and contrast in an oval can only be judged from images or video of this exact stone.

What to check on the exact stone

  • How dark is the bow-tie shadow across the center when viewed in normal daylight?
  • 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
1.50 ct
Shape
Oval
Color
D
Clarity
VVS2
Cut
Not stated
Measurements
8.84 × 6.47 × 4.08 mm
Table
51%
Depth
63.1%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Slightly thick to thick (faceted)
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report