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Round|Lab Grown|IGI

3.11ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG706512306

Shape and cutting style on the report: Round brilliant

Certificate IGI LG706512306

Diamond specifications and retailer prices

From $510 SGD
As of November 5, 2026
Save $2,262 SGD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,772 SGD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.11ct lab-grown round diamond

This 3.11ct 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 LG706512306 or 706512306. Listed at 16 retailers as of November 5, 2026, with prices from $510 to $2,772, a $2,262 spread on the same certified stone. Brilliant Earth lists it at $2,772. 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 angle34.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706512306
Dimensions9.32 × 9.34 × 5.79 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.32 mm9.34 mm3.11 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706512306
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $2,772 SGD|Low: $478 SGD|High: $2,772 SGD|Avg: $1,230 SGD
Brilliant Earth
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
November 6, 2026
Retailer 13$510 SGD
Retailer 6$571 SGD
Retailer 7$632 SGD
Retailer 15$632 SGD
Retailer 10$817 SGD
Retailer 8$874 SGD
Retailer 2$987 SGD
Retailer 14$1,001 SGD
Retailer 9$1,018 SGD
Retailer 3$1,119 SGD
Retailer 5$1,271 SGD
Retailer 11$1,535 SGD
Retailer 4$2,031 SGD
Retailer 12$2,468 SGD
Brilliant Earth$2,772 SGD

37 data points across 15 retailers

16 retailers$510 SGD to $2,772 SGD

A
Cheapest Retailer
-
$510 SGD
A
Retailer 2
-
$571 SGD
View
Retailer 3
-
$632 SGD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$632 SGD
View
A
Retailer 5
-
$817 SGD
View
A
Retailer 6
-
$874 SGD
View
A
Retailer 7
-
$987 SGD
View
B+
Retailer 8
-
$1,001 SGD
View
A
Retailer 9
-
$1,018 SGD
View
A
Retailer 10
-
$1,119 SGD
View
B+
Retailer 11
-
$1,271 SGD
View
B+
Retailer 12
-
$1,535 SGD
View
B
Retailer 13
-
$2,031 SGD
View
Retailer 14
-
$2,395 SGD
View
Price last confirmed 40 days ago
B
Retailer 15
-
$2,468 SGD
View
Most Expensive
B
Brilliant Earth
18656417A · Nov 5
$2,772 SGD
$2,170 USD
View
15 more retailers have this diamond
Prices start from $510 SGDSave up to $2,262 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 Round
$510 SGD