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Round|Lab Grown|IGI

1.29ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG773657850

Shape and cutting style on the report: Round brilliant

Certificate IGI LG773657850

Diamond specifications and retailer prices

From $242 CAD
As of November 1, 2026
Save $1,160 CAD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,401 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG773657850 or 773657850. Listed at 14 retailers as of November 1, 2026, with prices from $242 to $1,401, a $1,160 spread on the same certified stone. MOH London lists it at $1,401. 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

1.29
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773657850
Dimensions7.02 × 6.98 × 4.28 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
7.02 mm6.98 mm1.29 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773657850
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.1%

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: Nov 1
Current: $1,401 CAD|Low: $232 CAD|High: $1,442 CAD|Avg: $577 CAD|-2.8%
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
November 4, 2026
Retailer 11$242 CAD
Retailer 12$271 CAD
Retailer 6$297 CAD
Retailer 4$300 CAD
Retailer 7$511 CAD
Retailer 10$534 CAD
Retailer 14$534 CAD
Retailer 3$580 CAD
Retailer 9$584 CAD
Retailer 13$651 CAD
Retailer 2$656 CAD
Retailer 8$788 CAD
Retailer 5$838 CAD
MOH London$1,401 CAD

35 data points across 14 retailers

14 retailers$242 CAD to $1,401 CAD

A
Cheapest Retailer
-
$242 CAD
A
Retailer 2
-
$271 CAD
View
Final sale: no returns
Retailer 3
-
$297 CAD
View
Price last confirmed 52 days ago
Retailer 4
-
$300 CAD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$511 CAD
View
B+
Retailer 6
-
$534 CAD
View
A
Retailer 7
-
$534 CAD
View
A
Retailer 8
-
$580 CAD
View
A
Retailer 9
-
$584 CAD
View
B+
Retailer 10
-
$651 CAD
View
B+
Retailer 11
-
$656 CAD
View
B+
Retailer 12
-
$788 CAD
View
B+
Retailer 13
-
$838 CAD
View
Most Expensive
B
MOH London
LG773657850 · Nov 2
$1,401 CAD
£790 GBP
View
13 more retailers have this diamond
Prices start from $242 CADSave up to $1,160 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
1.29ct Round
$242 CAD