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Round|Lab Grown|IGI

1.25ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG777606396

Shape and cutting style on the report: Round brilliant

Certificate IGI LG777606396

Diamond specifications and retailer prices

From $398 CAD
As of November 4, 2026
Save $975 CAD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,373 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG777606396 or 777606396. Listed at 9 retailers as of November 2, 2026, with prices from $398 to $1,373, a $975 spread on the same certified stone. MOH London lists it at $1,373. 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

1.25
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG777606396
Dimensions6.99 × 6.98 × 4.17 mm
L/W Ratio1.00
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
6.99 mm6.98 mm1.25 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG777606396
Side View
Table 59.0%Crown 32.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.7%

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 4
Current: $1,373 CAD|Low: $398 CAD|High: $1,389 CAD|Avg: $768 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 4, 2026
Retailer 7$398 CAD
Retailer 2$517 CAD
Retailer 3$547 CAD
Retailer 5$656 CAD
Retailer 6$749 CAD
Retailer 4$1,131 CAD
MOH London$1,373 CAD

39 data points across 7 retailers

9 retailers$398 CAD to $1,373 CAD

B+
Cheapest Retailer
-
$398 CAD
A
Retailer 2
-
$517 CAD
View
Retailer 3
-
$547 CAD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$557 CAD
View
B+
Retailer 5
-
$656 CAD
View
B+
Retailer 6
-
$749 CAD
View
B
Retailer 7
-
$1,020 CAD
View
B
Retailer 8
-
$1,131 CAD
View
Most Expensive
B
MOH London
LG777606396 · Nov 2
$1,373 CAD
£774 GBP
View
8 more retailers have this diamond
Prices start from $398 CADSave up to $975 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
1.25ct Round
$398 CAD