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Round|Lab Grown|IGI

2.91ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG485161730

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485161730

Diamond specifications and retailer prices

From $3,535 CAD
As of November 5, 2026
Save $7,416 CAD (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $10,951 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 2.91ct lab-grown round diamond

This 2.91ct lab-grown round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG485161730 or 485161730. Listed at 10 retailers as of November 5, 2026, with prices from $3,535 to $10,951, a $7,416 spread on the same certified stone. MOH London lists it at $10,951. 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

2.91
Carat
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485161730
Dimensions9.09 × 9.13 × 5.58 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.09 mm9.13 mm2.91 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485161730
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.2%

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: Nov 5
Current: $10,951 CAD|Low: $3,394 CAD|High: $11,128 CAD|Avg: $5,605 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$3,535 CAD
Retailer 2$3,976 CAD
Retailer 6$4,100 CAD
Retailer 8$4,100 CAD
Retailer 3$4,106 CAD
Retailer 9$5,039 CAD
Retailer 4$6,018 CAD
Retailer 7$6,389 CAD
MOH London$10,951 CAD

39 data points across 9 retailers

10 retailers$3,535 CAD to $10,951 CAD

A
Cheapest Retailer
-
$3,535 CAD
A
Retailer 2
-
$3,846 CAD
View
A
Retailer 3
-
$3,976 CAD
View
Retailer 4
-
$4,100 CAD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$4,100 CAD
View
A
Retailer 6
-
$4,106 CAD
View
B
Retailer 7
-
$5,637 CAD
View
B
Retailer 8
-
$6,018 CAD
View
B
Retailer 9
-
$6,389 CAD
View
Most Expensive
B
MOH London
LG485161730 · Nov 5
$10,951 CAD
£6,174 GBP
View
9 more retailers have this diamond
Prices start from $3,535 CADSave up to $7,416 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
2.91ct Round
$3,535 CAD