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Heart|Lab Grown|IGI

0.51ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG741558725

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG741558725

Diamond specifications and retailer prices

From $216 CAD
$154 USD
As of October 28, 2026
Save $1,036 CAD (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,252 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown heart diamond

This 0.51ct lab-grown heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG741558725 or 741558725. Listed at 6 retailers as of October 28, 2026, with prices from $216 to $1,252, a $1,036 spread on the same certified stone. MOH London lists it at $1,252. 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

0.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741558725
Dimensions5.07 × 5.60 × 3.13 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.07 mm5.60 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741558725
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 55.9%

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 28
Current: $1,252 CAD|Low: $216 CAD|High: $1,547 CAD|Avg: $539 CAD|-18.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 6$216 CAD
Retailer 2$322 CAD
Retailer 4$323 CAD
Retailer 3$409 CAD
Retailer 5$628 CAD
MOH London$1,252 CAD

40 data points across 6 retailers

6 retailers$216 CAD to $1,252 CAD

A
Cheapest Retailer
-
$216 CAD
$154 USD
A
Retailer 2
-
$322 CAD
€218 EUR
View
A
Retailer 3
-
$323 CAD
£181 GBP
View
B+
Retailer 4
-
$409 CAD
£229 GBP
View
B
Retailer 5
-
$628 CAD
$447 USD
View
Most Expensive
B
MOH London
LG741558725 · Oct 29
$1,252 CAD
£702 GBP
View
5 more retailers have this diamond
Prices start from $216 CADSave up to $1,036 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
0.51ct Heart
$216 CAD