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Round|Lab Grown|IGI

1.23ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG729575214

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729575214

Diamond specifications and retailer prices

From $223 CAD
As of November 5, 2026
Save $1,071 CAD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,295 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round 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 LG729575214 or 729575214. Listed at 17 retailers as of November 1, 2026, with prices from $223 to $1,295, a $1,071 spread on the same certified stone. MOH London lists it at $1,295. 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 angle35°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729575214
Dimensions6.88 × 6.85 × 4.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.88 mm6.85 mm1.23 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729575214
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.7%

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 5
Current: $1,295 CAD|Low: $212 CAD|High: $1,302 CAD|Avg: $596 CAD|+1.2%
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
Retailer 17
November 6, 2026
Retailer 4$223 CAD
Retailer 3$249 CAD
Retailer 13$258 CAD
Retailer 15$277 CAD
Retailer 16$277 CAD
Retailer 2$478 CAD
Retailer 11$483 CAD
Retailer 8$501 CAD
Retailer 14$531 CAD
Retailer 10$621 CAD
Retailer 12$651 CAD
Retailer 7$732 CAD
Retailer 9$796 CAD
Retailer 5$890 CAD
Retailer 17$940 CAD
Retailer 6$966 CAD
MOH London$1,295 CAD

46 data points across 17 retailers

17 retailers$223 CAD to $1,295 CAD

A
Cheapest Retailer
-
$223 CAD
A
Retailer 2
-
$249 CAD
View
Final sale: no returns
A
Retailer 3
-
$258 CAD
View
Retailer 4
-
$277 CAD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$277 CAD
View
A
Retailer 6
-
$478 CAD
View
A
Retailer 7
-
$483 CAD
View
B+
Retailer 8
-
$501 CAD
View
A
Retailer 9
-
$531 CAD
View
B+
Retailer 10
-
$621 CAD
View
B+
Retailer 11
-
$651 CAD
View
B+
Retailer 12
-
$732 CAD
View
B+
Retailer 13
-
$796 CAD
View
B
Retailer 14
-
$890 CAD
View
B
Retailer 15
-
$940 CAD
View
B
Retailer 16
-
$966 CAD
View
Most Expensive
B
MOH London
LG729575214 · Nov 1
$1,295 CAD
£730 GBP
View
16 more retailers have this diamond
Prices start from $223 CADSave up to $1,071 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 Round
$223 CAD