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1.81ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG478123503

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478123503

Diamond specifications and retailer prices

From $1,425 CAD
$1,020 USD
As of October 30, 2026
Save $5,164 CAD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,589 CAD at MOH London · As of October 29, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478123503 or 478123503. Listed at 10 retailers as of October 29, 2026, with prices from $1,425 to $6,589, a $5,164 spread on the same certified stone. MOH London lists it at $6,589. 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478123503
Dimensions7.93 × 7.98 × 4.69 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
7.93 mm7.98 mm1.81 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478123503
Side View
Table 59.0%Crown 31.6°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 59.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,589 CAD|Low: $1,407 CAD|High: $6,642 CAD|Avg: $3,063 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,425 CAD
Retailer 4$1,759 CAD
Retailer 7$1,914 CAD
Retailer 9$1,970 CAD
Retailer 5$2,039 CAD
Retailer 11$2,841 CAD
Retailer 6$3,231 CAD
Retailer 10$3,802 CAD
Retailer 8$3,823 CAD
Retailer 3$4,563 CAD
MOH London$6,589 CAD

17 data points across 11 retailers

10 retailers$1,425 CAD to $6,589 CAD

A
Cheapest Retailer
-
$1,425 CAD
$1,020 USD
B+
Retailer 2
-
$1,759 CAD
$1,259 USD
View
B+
Retailer 3
-
$1,914 CAD
$1,370 USD
View
B+
Retailer 4
-
$1,970 CAD
$1,410 USD
View
Final sale: no returns
Retailer 5
-
$2,039 CAD
$1,460 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$2,039 CAD
$1,460 USD
View
B
Retailer 7
-
$3,231 CAD
$2,313 USD
View
B
Retailer 8
-
$3,802 CAD
$2,722 USD
View
B
Retailer 9
-
$3,823 CAD
$2,737 USD
View
Most Expensive
B
MOH London
LG478123503 · Oct 29
$6,589 CAD
£3,714 GBP
View
9 more retailers have this diamond
Prices start from $1,425 CADSave up to $5,164 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
$1,425 CAD