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Heart|Lab Grown|IGI

1.36ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG839608558

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG839608558

Diamond specifications and retailer prices

From $372 NZD
As of November 4, 2026
Save $1,306 NZD (78%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,678 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.36ct lab-grown heart diamond

This 1.36ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG839608558 or 839608558. Listed at 3 retailers as of November 4, 2026, with prices from $372 to $1,678, a $1,306 spread on the same certified stone. Brilliant Earth lists it at $1,678. 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

1.36
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839608558
Dimensions6.70 × 7.86 × 4.58 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.70 mm7.86 mm1.36 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839608558
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 58.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $1,678 NZD|Low: $372 NZD|High: $2,580 NZD|Avg: $1,323 NZD|-35.0%
Brilliant Earth
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$372 NZD
Retailer 2$768 NZD
Brilliant Earth$1,678 NZD

33 data points across 3 retailers

3 retailers$372 NZD to $1,678 NZD

A
Cheapest Retailer
-
$372 NZD
Final sale: no returns
B+
Retailer 2
-
$768 NZD
View
Most Expensive
B
Brilliant Earth
21583373A · Nov 6
$1,678 NZD
$930 USD
View
2 more retailers have this diamond
Prices start from $372 NZDSave up to $1,306 NZD

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
1.36ct Heart
$372 NZD