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Round|Lab Grown|IGI

3.71ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG628436131

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628436131

Diamond specifications and retailer prices

From $532 SGD
$416 USD
As of October 26, 2026
Save $4,185 SGD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,645 SGD at Jared · As of October 28, 2026
View at Jared

About this 3.71ct lab-grown round diamond

This 3.71ct lab-grown round 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 LG628436131 or 628436131. Listed at 12 retailers as of October 26, 2026, with a 787% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628436131
Dimensions9.93 × 9.97 × 5.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
9.93 mm9.97 mm3.71 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628436131
Side View
Table 58.0%Crown 32.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.2%

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 26
Current: $2,689 SGD|Low: $436 SGD|High: $4,832 SGD|Avg: $1,921 SGD|-1.8%
Retailer 1
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
October 29, 2026
Retailer 14$532 SGD
Retailer 8$596 SGD
Retailer 2$610 SGD
Retailer 9$1,014 SGD
Retailer 7$1,042 SGD
Retailer 12$1,042 SGD
Retailer 5$1,249 SGD
Retailer 6$1,342 SGD
Retailer 4$1,399 SGD
Retailer 10$1,850 SGD
Retailer 11$2,341 SGD
Retailer 1$2,689 SGD
Retailer 3$4,487 SGD
Retailer 13$4,717 SGD

33 data points across 14 retailers

12 retailers$532 SGD to $4,717 SGD

A
Cheapest Retailer
-
$532 SGD
$416 USD
A
Retailer 2
-
$596 SGD
$466 USD
View
A
Retailer 3
-
$610 SGD
$477 USD
View
Final sale: no returns
Retailer 4
-
$1,014 SGD
£624 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$1,042 SGD
$815 USD
View
A
Retailer 6
-
$1,042 SGD
$815 USD
View
B+
Retailer 7
-
$1,850 SGD
$1,447 USD
View
B+
Retailer 8
-
$2,341 SGD
$1,831 USD
View
B
Retailer 9
-
$2,689 SGD
£1,656 GBP
View
B
Retailer 10
-
$4,487 SGD
$3,510 USD
View
B
Retailer 11
-
$4,717 SGD
$3,690 USD
View
Most Expensive
Jared
150918726 · Oct 28
$7,645 SGD
$5,980 USD
View
Price under review
11 more retailers have this diamond
Prices start from $532 SGDSave up to $4,185 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
$532 SGD