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Cushion|Lab Grown|IGI

4.02ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG846639568

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846639568

Diamond specifications and retailer prices

From $530 USD
£417 GBP
As of November 2, 2026
Save $2,034 USD (79%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,564 USD at MOH London · As of November 1, 2026
View at MOH London

About this 4.02ct lab-grown cushion diamond

This 4.02ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG846639568 or 846639568. Listed at 7 retailers as of November 1, 2026, with prices from $530 to $2,564, a $2,034 spread on the same certified stone. MOH London lists it at $2,564. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.02
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846639568
Dimensions11.23 × 8.08 × 5.36 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.23 mm8.08 mm4.02 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846639568
Side View
Table 62.0%Crown 31.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,564 USD|Low: $530 USD|High: $2,577 USD|Avg: $1,174 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$530 USD
Retailer 5$554 USD
Retailer 4$755 USD
Retailer 7$955 USD
Retailer 3$1,021 USD
Retailer 6$1,148 USD
MOH London$2,564 USD

8 data points across 7 retailers

7 retailers$530 USD to $2,564 USD

A
Cheapest Retailer
-
$530 USD
£417 GBP
A
Retailer 2
-
$554 USD
View
Final sale: no returns
A
Retailer 3
-
$755 USD
View
B+
Retailer 4
-
$955 USD
View
A
Retailer 5
-
$1,021 USD
£804 GBP
View
A
Retailer 6
-
$1,148 USD
View
Most Expensive
B
MOH London
LG846639568 · Nov 1
$2,564 USD
£2,019 GBP
View
6 more retailers have this diamond
Prices start from $530 USDSave up to $2,034 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.02ct Cushion
$530 USD