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Round|Lab Grown|IGI

1.51ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG770669393

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770669393

Diamond specifications and retailer prices

From $311 CAD
As of November 5, 2026
Save $1,392 CAD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,704 CAD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770669393 or 770669393. Listed at 15 retailers as of November 5, 2026, with prices from $311 to $1,704, a $1,392 spread on the same certified stone. Brilliant Earth lists it at $1,704. 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

1.51
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770669393
Dimensions7.35 × 7.30 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.35 mm7.30 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770669393
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 41.6°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: $1,704 CAD|Low: $299 CAD|High: $1,704 CAD|Avg: $861 CAD|+0.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$311 CAD
Retailer 11$385 CAD
Retailer 9$517 CAD
Retailer 5$596 CAD
Retailer 7$649 CAD
Retailer 2$708 CAD
Retailer 3$844 CAD
Retailer 4$1,054 CAD
Retailer 6$1,068 CAD
Retailer 8$1,546 CAD
Brilliant Earth$1,704 CAD

44 data points across 11 retailers

15 retailers$311 CAD to $1,704 CAD

A
Cheapest Retailer
-
$311 CAD
A
Retailer 2
-
$360 CAD
View
Retailer 3
-
$385 CAD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$385 CAD
View
B+
Retailer 5
-
$517 CAD
View
A
Retailer 6
-
$596 CAD
View
A
Retailer 7
-
$624 CAD
View
A
Retailer 8
-
$649 CAD
View
A
Retailer 9
-
$708 CAD
View
B+
Retailer 10
-
$844 CAD
View
B
Retailer 11
-
$1,054 CAD
View
B+
Retailer 12
-
$1,068 CAD
View
B
Retailer 13
-
$1,239 CAD
View
Retailer 14
-
$1,546 CAD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
20482981A · Nov 5
$1,704 CAD
$1,220 USD
View
14 more retailers have this diamond
Prices start from $311 CADSave up to $1,392 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
1.51ct Round
$311 CAD