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Heart|Lab Grown|IGI

1.51ct D SI1 Heart Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From $392 CAD
As of November 6, 2026
Save $232 CAD (37%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $624 CAD at MoiMoi Australia · As of November 1, 2026
View at MoiMoi Australia

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 SI1 clarity (slightly-included) and certified by IGI. Listed at 2 retailers as of November 1, 2026, with prices from $392 to $624, a $232 spread on the same certified stone. MoiMoi Australia lists it at $624. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.24 × 7.66 × 4.65 mm
L/W Ratio1.06
Top View
7.24 mm7.66 mm1.51 ctD / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $624 CAD|Low: $198 CAD|High: $656 CAD|Avg: $353 CAD|-4.9%
MoiMoi Australia
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$198 CAD
Retailer 2$392 CAD
MoiMoi Australia$624 CAD

39 data points across 3 retailers

2 retailers$392 CAD to $624 CAD

B+
Cheapest Retailer
-
$392 CAD
Most Expensive
B+
MoiMoi Australia
423075007 · Nov 1
$624 CAD
A$683 AUD
View
1 more retailer has this diamond
Prices start from $392 CADSave up to $232 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.

B+
1.51ct Heart
$392 CAD