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Round|Lab Grown|IGI

1.23ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG529269207

Shape and cutting style on the report: Round brilliant

Certificate IGI LG529269207

Diamond specifications and retailer prices

From $247 CAD
As of November 5, 2026
Save $1,182 CAD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,430 CAD at MOH London · As of November 2, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG529269207 or 529269207. Listed at 11 retailers as of November 2, 2026, with prices from $247 to $1,430, a $1,182 spread on the same certified stone. MOH London lists it at $1,430. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529269207
Dimensions6.84 × 6.80 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.84 mm6.80 mm1.23 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529269207
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.2%

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 5
Current: $1,430 CAD|Low: $237 CAD|High: $1,920 CAD|Avg: $845 CAD|-1.1%
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 11$247 CAD
Retailer 15$277 CAD
Retailer 16$286 CAD
Retailer 17$482 CAD
Retailer 2$506 CAD
Retailer 13$542 CAD
Retailer 7$673 CAD
Retailer 5$763 CAD
Retailer 8$782 CAD
Retailer 6$817 CAD
Retailer 14$983 CAD
Retailer 9$990 CAD
Retailer 10$1,039 CAD
Retailer 12$1,341 CAD
Retailer 3$1,404 CAD
MOH London$1,430 CAD
Retailer 4$1,920 CAD

21 data points across 17 retailers

11 retailers$247 CAD to $1,430 CAD

A
Cheapest Retailer
-
$247 CAD
A
Retailer 2
-
$277 CAD
View
Final sale: no returns
A
Retailer 3
-
$286 CAD
View
A
Retailer 4
-
$482 CAD
View
A
Retailer 5
-
$506 CAD
View
A
Retailer 6
-
$542 CAD
View
B
Retailer 7
-
$983 CAD
View
B
Retailer 8
-
$1,039 CAD
View
B
Retailer 9
-
$1,341 CAD
View
B
Retailer 10
-
$1,404 CAD
View
Most Expensive
B
MOH London
LG529269207 · Nov 2
$1,430 CAD
£806 GBP
View
10 more retailers have this diamond
Prices start from $247 CADSave up to $1,182 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
$247 CAD