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Round|Lab Grown|IGI

3.71ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG666401279

Shape and cutting style on the report: Round brilliant

Certificate IGI LG666401279

Diamond specifications and retailer prices

From $504 SGD
$394 USD
As of October 29, 2026
Save $2,085 SGD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,589 SGD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.71ct lab-grown round diamond

This 3.71ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG666401279 or 666401279. Listed at 14 retailers as of October 28, 2026, with prices from $504 to $2,589, a $2,085 spread on the same certified stone. Rare Carat lists it at $2,589. 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

3.71
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG666401279
Dimensions9.93 × 9.97 × 6.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.93 mm9.97 mm3.71 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG666401279
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.1%

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: Oct 29
Current: $3,288 SGD|Low: $504 SGD|High: $6,498 SGD|Avg: $1,943 SGD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 11$504 SGD
Retailer 6$564 SGD
Retailer 5$624 SGD
Retailer 15$687 SGD
Retailer 12$812 SGD
Retailer 9$837 SGD
Retailer 3$991 SGD
Retailer 13$993 SGD
Retailer 10$1,021 SGD
Retailer 14$1,053 SGD
Retailer 16$1,521 SGD
Retailer 2$1,751 SGD
Retailer 4$2,007 SGD
Rare Carat$3,288 SGD
Retailer 8$4,960 SGD
Retailer 7$6,498 SGD

4 data points across 16 retailers

14 retailers$504 SGD to $2,589 SGD

A
Cheapest Retailer
-
$504 SGD
$394 USD
A
Retailer 2
-
$564 SGD
$441 USD
View
A
Retailer 3
-
$624 SGD
$488 USD
View
A
Retailer 4
-
$687 SGD
HK$4,200 HKD
View
A
Retailer 5
-
$812 SGD
$635 USD
View
A
Retailer 6
-
$837 SGD
£515 GBP
View
B+
Retailer 7
-
$991 SGD
$775 USD
View
A
Retailer 8
-
$993 SGD
€740 EUR
View
A
Retailer 9
-
$1,021 SGD
£629 GBP
View
A
Retailer 10
-
$1,053 SGD
$824 USD
View
B+
Retailer 11
-
$1,521 SGD
$1,190 USD
View
B+
Retailer 12
-
$1,751 SGD
$1,370 USD
View
B+
Retailer 13
-
$2,007 SGD
$1,570 USD
View
Most Expensive
B
Rare Carat
KI2794012KF666 · Oct 28
$2,589 SGD
$2,025 USD
View
13 more retailers have this diamond
Prices start from $504 SGDSave up to $2,085 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
3.71ct Round
$504 SGD