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Round|Lab Grown|IGI

1.51ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG779621240

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779621240

Diamond specifications and retailer prices

From $307 CAD
As of November 5, 2026
Save $1,447 CAD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,754 CAD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

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 LG779621240 or 779621240. Listed at 21 retailers as of November 4, 2026, with prices from $307 to $1,754, a $1,447 spread on the same certified stone. Reve Diamonds lists it at $1,754. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779621240
Dimensions7.33 × 7.38 × 4.52 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
7.33 mm7.38 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779621240
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.6%

Caratlytics Score

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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: $588 CAD|Low: $295 CAD|High: $1,754 CAD|Avg: $832 CAD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 5, 2026
Retailer 17$307 CAD
Retailer 9$342 CAD
Retailer 3$356 CAD
Retailer 2$380 CAD
Retailer 7$380 CAD
Retailer 5$514 CAD
Retailer 1$588 CAD
Retailer 13$613 CAD
Retailer 4$623 CAD
Retailer 11$697 CAD
Retailer 8$735 CAD
Retailer 16$760 CAD
Retailer 15$933 CAD
Retailer 12$1,061 CAD
Retailer 6$1,222 CAD
Retailer 10$1,295 CAD
Retailer 18$1,452 CAD
Retailer 14$1,522 CAD
Reve Diamonds$1,754 CAD

43 data points across 19 retailers

21 retailers$307 CAD to $1,754 CAD

A
Cheapest Retailer
-
$307 CAD
A
Retailer 2
-
$342 CAD
View
Final sale: no returns
A
Retailer 3
-
$356 CAD
View
A
Retailer 4
-
$380 CAD
View
Retailer 5
-
$380 CAD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$514 CAD
View
A
Retailer 7
-
$588 CAD
View
A
Retailer 8
-
$613 CAD
View
A
Retailer 9
-
$623 CAD
View
A
Retailer 10
-
$697 CAD
View
B+
Retailer 11
-
$735 CAD
View
B+
Retailer 12
-
$760 CAD
View
B+
Retailer 13
-
$933 CAD
View
Retailer 14
-
$987 CAD
View
Price last confirmed 9 days ago
B
Retailer 15
-
$1,061 CAD
View
B+
Retailer 16
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$1,075 CAD
View
B
Retailer 17
-
$1,222 CAD
View
B
Retailer 18
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$1,295 CAD
View
B
Retailer 19
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$1,452 CAD
View
B
Retailer 20
-
$1,522 CAD
View
Most Expensive
B
Reve Diamonds
34A7E3B50 · Nov 4
$1,754 CAD
$1,256 USD
View
20 more retailers have this diamond
Prices start from $307 CADSave up to $1,447 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
$307 CAD