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Round|Lab Grown|IGI

1.51ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG749570981

Shape and cutting style on the report: Round brilliant

Certificate IGI LG749570981

Diamond specifications and retailer prices

From $327 CAD
As of November 5, 2026
Save $1,491 CAD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,818 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 LG749570981 or 749570981. Listed at 21 retailers as of November 4, 2026, with prices from $327 to $1,818, a $1,491 spread on the same certified stone. Reve Diamonds lists it at $1,818. 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 angle34.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749570981
Dimensions7.32 × 7.30 × 4.61 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
7.32 mm7.30 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749570981
Side View
Table 57.0%Crown 34.4°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.1%

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: $754 CAD|Low: $324 CAD|High: $1,818 CAD|Avg: $885 CAD|+4.2%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 8$327 CAD
Retailer 15$366 CAD
Retailer 16$378 CAD
Retailer 3$405 CAD
Retailer 4$405 CAD
Retailer 10$627 CAD
Retailer 17$630 CAD
Retailer 5$686 CAD
Retailer 1$754 CAD
Retailer 2$757 CAD
Retailer 14$760 CAD
Retailer 12$1,061 CAD
Retailer 9$1,302 CAD
Retailer 13$1,306 CAD
Retailer 7$1,374 CAD
Retailer 11$1,619 CAD
Retailer 6$1,704 CAD
Reve Diamonds$1,818 CAD

33 data points across 18 retailers

21 retailers$327 CAD to $1,818 CAD

A
Cheapest Retailer
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$327 CAD
A
Retailer 2
-
$366 CAD
View
Final sale: no returns
A
Retailer 3
-
$378 CAD
View
Retailer 4
-
$405 CAD
View
Price last confirmed 12 days ago
A
Retailer 5
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$405 CAD
View
A
Retailer 6
-
$627 CAD
View
A
Retailer 7
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$630 CAD
View
B+
Retailer 8
-
$686 CAD
View
B+
Retailer 9
-
$754 CAD
View
B+
Retailer 10
-
$757 CAD
View
B+
Retailer 11
-
$760 CAD
View
B
Retailer 12
-
$1,061 CAD
View
B+
Retailer 13
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$1,075 CAD
View
Retailer 14
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$1,109 CAD
View
Price last confirmed 68 days ago
Retailer 15
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$1,290 CAD
View
Price last confirmed 46 days ago
B
Retailer 16
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$1,302 CAD
View
B
Retailer 17
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$1,306 CAD
View
B
Retailer 18
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$1,374 CAD
View
B
Retailer 19
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$1,619 CAD
View
B
Retailer 20
-
$1,704 CAD
View
Most Expensive
B
Reve Diamonds
721BB40CF · Nov 4
$1,818 CAD
$1,302 USD
View
20 more retailers have this diamond
Prices start from $327 CADSave up to $1,491 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
$327 CAD