Skip to content
Every stone IGI certified & laser inscribed

Lab-grown · GCAL certified

1.63 ct Radiant lab-grown diamond

D · SI1 · Ideal cut

Price on request

Available · ships insured

Carat
1.63
≈ 8.2 mm face-up
Color
D
Colorless, the top of the scale
Clarity
SI1
Usually eye-clean
Cut
Ideal
Top grade for light return
  • I
    GCAL certified

    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 1.63 carat radiant lab grown diamond, a cut-cornered outline with the fire of a brilliant. At D color it sits at the very top of the scale: icy and completely colorless. SI1 clarity keeps the price sensible while staying lively to the eye. Cut to ideal proportions for maximum brilliance.

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-RA-163-ID-D-SI1-NGC-17-88-A

Inquire

Ask about this stone

1.63 ct RadiantPrice on request · SKU CC-RA-163-ID-D-SI1-NGC-17-88-A
Color
D
Clarity
SI1
Cut
Ideal
GCAL
Certified

We reply personally, usually within one working day.

Specification

Every number, from the report.

Grading
ShapeRadiant
Carat1.63
ColorD
ClaritySI1
CutIdeal
PolishExcellent
SymmetryExcellent
LabGCAL
Proportions
Measurements8.19 - 5.74 - 3.93 mm
Table65.0%
Depth68.5%
Crown angle45.8°
Crown height13.8%
Pavilion angle34.9°
Pavilion depth49.7%
Table 65.0%Depth68.5%Crown 45.8°Pavilion 34.9°

Profile drawn from this stone's grading report measurements.