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Heart|Lab Grown|IGI

1.51ct D VS2 Heart Lab Grown Diamond

EX • D/VS2 • IGI LG645423250

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG645423250

Diamond specifications and retailer prices

From $439 CAD
$314 USD
As of October 25, 2026
Save $1,333 CAD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,057 CAD at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG645423250 or 645423250. Listed at 14 retailers as of October 25, 2026, with a 303% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645423250
Dimensions7.10 × 7.89 × 4.64 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.10 mm7.89 mm1.51 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645423250
Side View
Table 58.0%Crown 36.6°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 58.8%

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: Oct 25
Current: $2,057 CAD|Low: $397 CAD|High: $2,197 CAD|Avg: $1,090 CAD|-6.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7$439 CAD
Retailer 8$492 CAD
Retailer 9$602 CAD
Retailer 12$735 CAD
Retailer 4$736 CAD
Retailer 2$838 CAD
Retailer 10$914 CAD
Retailer 6$1,352 CAD
Retailer 3$1,486 CAD
Retailer 11$1,730 CAD
Retailer 5$1,772 CAD
Brilliant Earth$2,057 CAD

38 data points across 12 retailers

14 retailers$439 CAD to $1,772 CAD

Retailer 1
-
$392 CAD
$280 USD
Price last confirmed 32 days ago
Retailer 2
-
$439 CAD
$314 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$439 CAD
$314 USD
View
Retailer 4
-
$492 CAD
£277 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
$602 CAD
$430 USD
View
A
Retailer 6
-
$735 CAD
$525 USD
View
B+
Retailer 7
-
$736 CAD
$526 USD
View
B+
Retailer 8
-
$838 CAD
£472 GBP
View
B+
Retailer 9
-
$914 CAD
$653 USD
View
B
Retailer 10
-
$1,352 CAD
$966 USD
View
Retailer 11
-
$1,486 CAD
$1,062 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
$1,730 CAD
$1,236 USD
View
B
Retailer 13
-
$1,772 CAD
£997 GBP
View
Most Expensive
Brilliant Earth
11351475A · Oct 14
$2,057 CAD
$1,470 USD
View
Price last confirmed 15 days ago
13 more retailers have this diamond
Prices start from $439 CADSave up to $1,333 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 Heart
$439 CAD