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Round|Lab Grown|IGI

1.81ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG494161661

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494161661

Diamond specifications and retailer prices

From $1,566 CAD
As of November 5, 2026
Save $4,254 CAD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,819 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494161661 or 494161661. Listed at 10 retailers as of November 5, 2026, with prices from $1,566 to $5,819, a $4,254 spread on the same certified stone. MOH London lists it at $5,819. 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

1.81
Carat
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494161661
Dimensions7.78 × 7.84 × 4.82 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.78 mm7.84 mm1.81 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494161661
Side View
Table 56.5%Crown 35.7°GirdlePavilion 40.3°Culet: NoneDepth 61.7%

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: $5,819 CAD|Low: $1,503 CAD|High: $5,913 CAD|Avg: $2,822 CAD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$1,566 CAD
Retailer 5$1,817 CAD
Retailer 7$1,817 CAD
Retailer 2$1,987 CAD
Retailer 3$2,060 CAD
Retailer 9$2,613 CAD
Retailer 6$2,888 CAD
Retailer 8$3,684 CAD
MOH London$5,819 CAD

38 data points across 9 retailers

10 retailers$1,566 CAD to $5,819 CAD

A
Cheapest Retailer
-
$1,566 CAD
A
Retailer 2
-
$1,704 CAD
View
Retailer 3
-
$1,817 CAD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$1,817 CAD
View
A
Retailer 5
-
$1,987 CAD
View
B+
Retailer 6
-
$2,060 CAD
View
B
Retailer 7
-
$2,888 CAD
View
B
Retailer 8
-
$3,405 CAD
View
B
Retailer 9
-
$3,684 CAD
View
Most Expensive
B
MOH London
LG494161661 · Nov 5
$5,819 CAD
£3,281 GBP
View
9 more retailers have this diamond
Prices start from $1,566 CADSave up to $4,254 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
1.81ct Round
$1,566 CAD