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Round|Lab Grown|IGI

1.80ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG451057428

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057428

Diamond specifications and retailer prices

From $1,752 CAD
$1,252 USD
As of October 29, 2026
Save $4,787 CAD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,539 CAD at MOH London · As of October 27, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct 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 LG451057428 or 451057428. Listed at 10 retailers as of October 27, 2026, with prices from $1,752 to $6,539, a $4,787 spread on the same certified stone. MOH London lists it at $6,539. 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

1.80
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057428
Dimensions7.74 × 7.77 × 4.79 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.74 mm7.77 mm1.80 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057428
Side View
Table 57.0%Crown 36.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
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: Oct 29
Current: $6,539 CAD|Low: $1,752 CAD|High: $6,619 CAD|Avg: $3,275 CAD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 27, 2026
Retailer 2$1,752 CAD
Retailer 3$1,791 CAD
Retailer 6$1,961 CAD
Retailer 4$2,032 CAD
Retailer 8$2,833 CAD
Retailer 5$3,222 CAD
Retailer 7$3,789 CAD
Retailer 9$4,546 CAD
MOH London$6,539 CAD

13 data points across 9 retailers

10 retailers$1,752 CAD to $6,539 CAD

A
Cheapest Retailer
-
$1,752 CAD
$1,252 USD
A
Retailer 2
-
$1,791 CAD
$1,280 USD
View
A
Retailer 3
-
$1,906 CAD
$1,362 USD
View
A
Retailer 4
-
$1,961 CAD
$1,401 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,032 CAD
$1,452 USD
View
Retailer 6
-
$2,032 CAD
$1,452 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$3,222 CAD
$2,302 USD
View
B
Retailer 8
-
$3,789 CAD
$2,707 USD
View
B
Retailer 9
-
$3,811 CAD
$2,723 USD
View
Most Expensive
B
MOH London
LG451057428 · Oct 27
$6,539 CAD
£3,679 GBP
View
9 more retailers have this diamond
Prices start from $1,752 CADSave up to $4,787 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
1.80ct Round
$1,752 CAD