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Round|Lab Grown|IGI

3.09ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG685591087

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685591087

Diamond specifications and retailer prices

From $465 CAD
As of November 5, 2026
Save $1,972 CAD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,437 CAD 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685591087 or 685591087. Listed at 13 retailers as of November 4, 2026, with prices from $465 to $2,437, a $1,972 spread on the same certified stone. Rare Carat lists it at $2,437. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685591087
Dimensions9.39 × 9.36 × 5.73 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
9.39 mm9.36 mm3.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685591087
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.9°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: Nov 5
Current: $2,437 CAD|Low: $465 CAD|High: $6,061 CAD|Avg: $2,043 CAD|-3.6%
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
November 6, 2026
Retailer 11$465 CAD
Retailer 8$577 CAD
Retailer 3$642 CAD
Retailer 14$789 CAD
Retailer 2$797 CAD
Retailer 15$927 CAD
Retailer 5$930 CAD
Retailer 9$1,018 CAD
Retailer 4$1,344 CAD
Retailer 13$1,690 CAD
Retailer 10$1,853 CAD
Retailer 12$2,303 CAD
Rare Carat$2,437 CAD
Retailer 6$5,940 CAD
Retailer 7$6,061 CAD

10 data points across 15 retailers

13 retailers$465 CAD to $2,437 CAD

A
Cheapest Retailer
-
$465 CAD
A
Retailer 2
-
$577 CAD
View
A
Retailer 3
-
$642 CAD
View
A
Retailer 4
-
$789 CAD
View
A
Retailer 5
-
$797 CAD
View
Retailer 6
-
$927 CAD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$930 CAD
View
A
Retailer 8
-
$1,018 CAD
View
A
Retailer 9
-
$1,344 CAD
View
B+
Retailer 10
-
$1,690 CAD
View
B+
Retailer 11
-
$1,853 CAD
View
B
Retailer 12
-
$2,303 CAD
View
Most Expensive
B
Rare Carat
KI0875910KF685 · Nov 4
$2,437 CAD
$1,745 USD
View
12 more retailers have this diamond
Prices start from $465 CADSave up to $1,972 CAD

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
$465 CAD