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Round|Lab Grown|IGI

3.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG687546990

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687546990

Diamond specifications and retailer prices

From $437 SGD
As of November 5, 2026
Save $1,830 SGD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,267 SGD at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 3.09ct lab-grown round diamond

This 3.09ct 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 LG687546990 or 687546990. Listed at 15 retailers as of November 4, 2026, with prices from $437 to $2,267, a $1,830 spread on the same certified stone. Rare Carat lists it at $2,267. 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

3.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687546990
Dimensions9.35 × 9.39 × 5.76 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
9.35 mm9.39 mm3.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687546990
Side View
Table 56.0%Crown 34.7°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.6%

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 5
Current: $2,267 SGD|Low: $437 SGD|High: $5,431 SGD|Avg: $1,386 SGD|-22.9%
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
November 5, 2026
Retailer 12$437 SGD
Retailer 7$507 SGD
Retailer 6$542 SGD
Retailer 16$604 SGD
Retailer 2$719 SGD
Retailer 13$734 SGD
Retailer 14$870 SGD
Retailer 4$874 SGD
Retailer 15$949 SGD
Retailer 9$961 SGD
Retailer 3$1,219 SGD
Retailer 11$1,589 SGD
Retailer 5$1,741 SGD
Retailer 10$2,170 SGD
Rare Carat$2,267 SGD
Retailer 8$5,431 SGD

10 data points across 16 retailers

15 retailers$437 SGD to $2,267 SGD

A
Cheapest Retailer
-
$437 SGD
A
Retailer 2
-
$507 SGD
View
A
Retailer 3
-
$542 SGD
View
A
Retailer 4
-
$604 SGD
View
A
Retailer 5
-
$719 SGD
View
A
Retailer 6
-
$734 SGD
View
Retailer 7
-
$870 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$874 SGD
View
A
Retailer 9
-
$949 SGD
View
A
Retailer 10
-
$961 SGD
View
A
Retailer 11
-
$1,219 SGD
View
B+
Retailer 12
-
$1,589 SGD
View
B+
Retailer 13
-
$1,741 SGD
View
B
Retailer 14
-
$2,170 SGD
View
Most Expensive
B
Rare Carat
KI9905469KF687 · Nov 4
$2,267 SGD
$1,775 USD
View
14 more retailers have this diamond
Prices start from $437 SGDSave up to $1,830 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
3.09ct Round
$437 SGD