Heart|Lab Grown|IGI

1.51ct H SI1 Heart Lab Grown Diamond

ID • H/SI1 • IGI LG733547577

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG733547577

Diamond specifications and retailer prices

From $626 CAD
€427 EUR
As of October 31, 2026
Save $882 CAD (58%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,508 CAD at MOH London · As of November 1, 2026
View at MOH London

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG733547577 or 733547577. Listed at 5 retailers as of October 31, 2026, with prices from $626 to $1,508, a $882 spread on the same certified stone. MOH London lists it at $1,508. 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
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733547577
Dimensions7.77 × 7.17 × 4.73 mm
L/W Ratio1.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.77 mm7.17 mm1.51 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733547577
Side View
Table 54.0%Crown 35°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 60.9%

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 31
Current: $1,508 CAD|Low: $545 CAD|High: $1,524 CAD|Avg: $817 CAD|+1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2$626 CAD
Retailer 4$645 CAD
Retailer 5$648 CAD
Retailer 3$835 CAD
MOH London$1,508 CAD

16 data points across 5 retailers

5 retailers$626 CAD to $1,508 CAD

A
Cheapest Retailer
-
$626 CAD
€427 EUR
A
Retailer 2
-
$645 CAD
$462 USD
View
A
Retailer 3
-
$648 CAD
$464 USD
View
B+
Retailer 4
-
$835 CAD
$598 USD
View
Most Expensive
B+
MOH London
LG733547577 · Nov 1
$1,508 CAD
£850 GBP
View
4 more retailers have this diamond
Prices start from $626 CADSave up to $882 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
$626 CAD