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Cushion|Lab Grown|IGI

3.11ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG538202521

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG538202521

Diamond specifications and retailer prices

From $606 SGD
As of November 6, 2026
Save $1,524 SGD (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,131 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 3.11ct lab-grown cushion diamond

This 3.11ct 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 LG538202521 or 538202521. Listed at 9 retailers as of November 5, 2026, with prices from $606 to $2,131, a $1,524 spread on the same certified stone. MOH London lists it at $2,131. 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

3.11
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538202521
Dimensions9.68 × 7.91 × 5.38 mm
L/W Ratio1.22
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
9.68 mm7.91 mm3.11 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538202521
Side View
Table 62.5%Crown 33.3°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $2,131 SGD|Low: $606 SGD|High: $5,613 SGD|Avg: $1,962 SGD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$606 SGD
Retailer 5$665 SGD
Retailer 7$743 SGD
Retailer 11$879 SGD
Retailer 2$884 SGD
Retailer 8$956 SGD
Retailer 6$971 SGD
Retailer 10$1,347 SGD
MOH London$2,131 SGD
Retailer 3$3,450 SGD
Retailer 12$5,028 SGD
Retailer 4$5,613 SGD

10 data points across 12 retailers

9 retailers$606 SGD to $2,131 SGD

A
Cheapest Retailer
-
$606 SGD
A
Retailer 2
-
$665 SGD
View
A
Retailer 3
-
$743 SGD
View
B+
Retailer 4
-
$879 SGD
View
A
Retailer 5
-
$884 SGD
View
A
Retailer 6
-
$956 SGD
View
A
Retailer 7
-
$971 SGD
View
A
Retailer 8
-
$1,347 SGD
View
Most Expensive
B+
MOH London
LG538202521 · Nov 5
$2,131 SGD
£1,309 GBP
View
8 more retailers have this diamond
Prices start from $606 SGDSave up to $1,524 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
3.11ct Cushion
$606 SGD