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Cushion|Lab Grown|IGI

4.06ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG617417790

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG617417790

Diamond specifications and retailer prices

From $991 SGD
$775 USD
As of November 2, 2026
Save $3,050 SGD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,041 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.06ct lab-grown cushion diamond

This 4.06ct 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 LG617417790 or 617417790. Listed at 10 retailers as of October 31, 2026, with prices from $991 to $4,041, a $3,050 spread on the same certified stone. Brilliant Earth lists it at $4,041. 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

4.06
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617417790
Dimensions9.33 × 9.25 × 6.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.33 mm9.25 mm4.06 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617417790
Side View
Table 64.0%Crown 35.7°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $4,041 SGD|Low: $605 SGD|High: $4,182 SGD|Avg: $1,831 SGD|-3.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$707 SGD
Retailer 8$816 SGD
Retailer 6$991 SGD
Retailer 5$1,128 SGD
Retailer 2$1,263 SGD
Retailer 11$1,264 SGD
Retailer 9$1,324 SGD
Retailer 10$1,500 SGD
Retailer 4$3,404 SGD
Retailer 3$3,865 SGD
Brilliant Earth$4,041 SGD

36 data points across 11 retailers

10 retailers$991 SGD to $4,041 SGD

Retailer 1
-
$816 SGD
$638 USD
Price last confirmed 22 days ago
A
Retailer 2
-
$991 SGD
$775 USD
View
A
Retailer 3
-
$1,128 SGD
€840 EUR
View
A
Retailer 4
-
$1,263 SGD
£778 GBP
View
B+
Retailer 5
-
$1,264 SGD
$988 USD
View
A
Retailer 6
-
$1,324 SGD
$1,035 USD
View
A
Retailer 7
-
$1,500 SGD
$1,173 USD
View
B
Retailer 8
-
$3,404 SGD
£2,096 GBP
View
B
Retailer 9
-
$3,865 SGD
$3,022 USD
View
Most Expensive
B
Brilliant Earth
8988689A · Oct 31
$4,041 SGD
$3,160 USD
View
9 more retailers have this diamond
Prices start from $991 SGDSave up to $3,050 SGD

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
4.06ct Cushion
$991 SGD