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Princess|Lab Grown|IGI

1.23ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG555291418

Shape and cutting style on the report: Princess cut

Certificate IGI LG555291418

Diamond specifications and retailer prices

From $221 CAD
As of November 6, 2026
Save $1,055 CAD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,275 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct lab-grown princess diamond

This 1.23ct lab-grown princess sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG555291418 or 555291418. Listed at 16 retailers as of November 4, 2026, with prices from $221 to $1,275, a $1,055 spread on the same certified stone. MOH London lists it at $1,275. 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

1.23
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555291418
Dimensions5.82 × 5.68 × 4.16 mm
L/W Ratio1.02
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
5.82 mm5.68 mm1.23 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555291418
Side View
Table 71.0%Crown 46°Girdle: MediumPavilion 39.1°Culet: NoneDepth 73.2%

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: Nov 6
Current: $1,275 CAD|Low: $203 CAD|High: $1,508 CAD|Avg: $626 CAD|+3.5%
MOH London
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
Retailer 16
November 6, 2026
Retailer 5$221 CAD
Retailer 3$256 CAD
Retailer 13$274 CAD
Retailer 14$274 CAD
Retailer 9$352 CAD
Retailer 7$370 CAD
Retailer 11$472 CAD
Retailer 2$475 CAD
Retailer 12$532 CAD
Retailer 16$564 CAD
Retailer 4$729 CAD
Retailer 15$880 CAD
Retailer 6$929 CAD
Retailer 10$1,061 CAD
Retailer 8$1,063 CAD
MOH London$1,275 CAD

44 data points across 16 retailers

16 retailers$221 CAD to $1,275 CAD

A
Cheapest Retailer
-
$221 CAD
A
Retailer 2
-
$256 CAD
View
Retailer 3
-
$274 CAD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$274 CAD
View
A
Retailer 5
-
$352 CAD
View
B+
Retailer 6
-
$370 CAD
View
Retailer 7
-
$472 CAD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$475 CAD
View
B+
Retailer 9
-
$532 CAD
View
B+
Retailer 10
-
$564 CAD
View
B
Retailer 11
-
$729 CAD
View
B
Retailer 12
-
$880 CAD
View
B
Retailer 13
-
$929 CAD
View
B
Retailer 14
-
$1,061 CAD
View
Retailer 15
-
$1,063 CAD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
LG555291418 · Nov 4
$1,275 CAD
£719 GBP
View
15 more retailers have this diamond
Prices start from $221 CADSave up to $1,055 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
1.23ct Princess
$221 CAD