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Cushion|Lab Grown|IGI

4.12ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG602314691

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG602314691

Diamond specifications and retailer prices

From $889 SGD
$695 USD
As of November 2, 2026
Save $3,216 SGD (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,105 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.12ct lab-grown cushion diamond

This 4.12ct 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 LG602314691 or 602314691. Listed at 9 retailers as of October 31, 2026, with prices from $889 to $4,105, a $3,216 spread on the same certified stone. Brilliant Earth lists it at $4,105. 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

4.12
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.1°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602314691
Dimensions10.79 × 8.58 × 5.73 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizePointed
Top View
10.79 mm8.58 mm4.12 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602314691
Side View
Table 66.0%Crown 31.1°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 66.8%

Caratlytics Score

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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: $4,105 SGD|Low: $611 SGD|High: $7,750 SGD|Avg: $1,891 SGD|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$611 SGD
Retailer 4$889 SGD
Retailer 9$1,105 SGD
Retailer 3$1,144 SGD
Retailer 2$1,155 SGD
Retailer 8$1,238 SGD
Retailer 6$1,508 SGD
Retailer 5$2,602 SGD
Brilliant Earth$4,105 SGD

36 data points across 9 retailers

9 retailers$889 SGD to $4,105 SGD

Retailer 1
-
$611 SGD
£376 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
$889 SGD
$695 USD
View
B+
Retailer 3
-
$1,105 SGD
$864 USD
View
A
Retailer 4
-
$1,144 SGD
€852 EUR
View
A
Retailer 5
-
$1,155 SGD
£711 GBP
View
A
Retailer 6
-
$1,238 SGD
$968 USD
View
A
Retailer 7
-
$1,508 SGD
$1,179 USD
View
B+
Retailer 8
-
$2,602 SGD
£1,602 GBP
View
Most Expensive
B
Brilliant Earth
8384918A · Oct 31
$4,105 SGD
$3,210 USD
View
8 more retailers have this diamond
Prices start from $889 SGDSave up to $3,216 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
4.12ct Cushion
$889 SGD