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Independently certified, most by IGI · Laser inscribed
4.26 Carat Square Cushion Lab Grown Diamond, Excellent Polish, E Color, VVS1 Clarity
Skin tone

This stone, actual size on a size 6 finger.

Grading reportIGI
Report no.
750571099
Carat
4.26
Color
E
Clarity
VVS1
Verify on igi.org ↗

Lab-grown · IGI certified

4.26 ct Square Cushion lab-grown diamond

E · VVS1

$4,508.77≈ $1,058.40 / ct

Available · ships insured

Carat
4.26
≈ 9.5 mm face-up
Color
E
Colorless, the top of the scale
Clarity
VVS1
Inclusions nearly invisible at 10×
  • I
    IGI report 750571099

    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 4.26 carat square cushion lab grown diamond, a square outline with softened corners and a soft, pillowy sparkle. At E color it sits at the very top of the scale: icy and completely colorless. VVS1 clarity: inclusions are nearly invisible, even to a grader.

It is chemically, physically and optically identical to a mined diamond, different only in origin, with none of the mining footprint.

Sold loose at 9.5 × 9.4 mm face-up, it is ready to become an engagement ring stone, a pendant or a one-of-one piece. Graded by IGI under report 750571099, laser-inscribed on the girdle, and shipped insured from Surat.

SKU CC-SC-426-EX-E-VVS1-NGB-18-380

Inquire

Ask about this stone

4.26 ct Square Cushion$4,508.77 · SKU CC-SC-426-EX-E-VVS1-NGB-18-380
Color
E
Clarity
VVS1
IGI
750571099

We reply personally, usually within one working day.

Specification

Every number, from the report.

Grading
ShapeSquare Cushion
Carat4.26
ColorE
ClarityVVS1
PolishExcellent
SymmetryExcellent
LabIGI
Report no.750571099
Proportions
Measurements9.51 - 9.40 - 6.23 mm
Table60.0%
Depth66.3%
Crown angle34.9°
Crown height14.0%
Pavilion angle39.8°
Pavilion depth48.5%
Table 60.0%Depth66.3%Crown 34.9°Pavilion 39.8°

Profile drawn from this stone's grading report measurements.

Questions

About this stone.

Is this a real diamond?

Yes. This 4.26 carat square cushion is a lab grown diamond: chemically, physically and optically identical to a mined diamond, different only in origin. It is graded by IGI, an independent gemological laboratory.

How do I verify the certificate?

The IGI report number is 750571099. It is also laser-inscribed on the girdle of the stone. Look the number up on igi.org and match it to the inscription under a 10× loupe when the stone arrives.

How big does it look?

It weighs 4.26 carats and measures about 9.5 × 9.4 mm face-up. Open the On hand tab in the gallery to see this stone at true size on a hand, in five skin tones.

What do E color and VVS1 clarity mean?

E color is in the colorless range, the top of the color scale. VVS1 clarity means any inclusions are very difficult to see even under 10× magnification.

Can I see the real stone before I buy?

Yes. The gallery shows this exact stone in real photos and a 360° video. If you want another angle or a closer look at a detail, ask us and a partner in Surat will reply.

What does it cost?

It is listed at $4,508.77 for this single stone. Insured shipping is calculated at checkout, and import duties and taxes are prepaid so there is nothing extra to pay on delivery.

How is it shipped, and can I return it?

Ready-to-ship stones leave Surat within one week, fully insured and tracked, with a signature on delivery. You can return a loose stone within 14 days of delivery if it comes back unset and as delivered, and we pay for insured return shipping.

Can this stone be set in a ring or pendant?

Yes. Send a custom brief with the stone’s SKU (CC-SC-426-EX-E-VVS1-NGB-18-380) and we will design the piece, share a CAD render for your approval and set the stone. Custom pieces take 3 to 4 weeks and cannot be returned once made.