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Every stone IGI certified & laser inscribed

Lab-grown · IGI certified

1.55 ct Square Cushion lab-grown diamond

F · SI1

Price on request

Available · ships insured

Carat
1.55
≈ 6.8 mm face-up
Colour
F
Colourless, the top of the scale
Clarity
SI1
Usually eye-clean
  • I
    IGI report 674547147

    Laser-inscribed on the girdle. Match it under a loupe.

  • II
    Insured, tracked shipping

    Signature on delivery. Shipping policy

  • III
    Returns you can rely on

    See our returns & refunds.

  • IV
    Set it your way

    Turn this stone into a bespoke piece.

This 1.55 carat square cushion lab grown diamond, a distinctive outline cut by hand on our Surat bench. At F colour it sits at the very top of the scale: icy and completely colourless. SI1 clarity keeps the price sensible while staying lively to the eye.

It is chemically, physically and optically identical to a mined diamond: a lab created, man-made diamond in origin only, with none of the mining footprint.

Sold loose, it is ready to become an engagement ring stone, a pendant or a one-of-one piece. Independently graded and certified, and shipped insured worldwide from Surat.

SKU CC-SC-155-EX-F-SI1-NGX-60-471

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1.55 ct Square CushionPrice on request · SKU CC-SC-155-EX-F-SI1-NGX-60-471
Colour
F
Clarity
SI1
IGI
674547147

We reply personally, usually within one working day.

Specification

Every number, from the report.

Grading
ShapeSquare Cushion
Carat1.55
ColourF
ClaritySI1
PolishExcellent
SymmetryExcellent
LabIGI
Report no.674547147
Proportions
Measurements6.81 - 6.48 - 4.48 mm
Table62.0%
Depth69.1%
Crown angle36.1°
Crown height14.0%
Pavilion angle42.0°
Pavilion depth50.5%
Table 62.0%Depth69.1%Crown 36.1°Pavilion 42.0°

Profile drawn from this stone's grading report measurements.