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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 $293 AUD
$206 USD
As of October 30, 2026
Save $1,031 AUD (78%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,324 AUD at Brilliant Earth · As of October 30, 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 October 30, 2026, with prices from $293 to $1,324, a $1,031 spread on the same certified stone. Brilliant Earth lists it at $1,324. 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: Oct 30
Current: $1,324 AUD|Low: $293 AUD|High: $2,036 AUD|Avg: $1,136 AUD|-35.0%
Brilliant Earth
Retailer 2
Retailer 3
October 31, 2026
Retailer 3$293 AUD
Retailer 2$613 AUD
Brilliant Earth$1,324 AUD

27 data points across 3 retailers

3 retailers$293 AUD to $1,324 AUD

A
Cheapest Retailer
-
$293 AUD
$206 USD
Final sale: no returns
B+
Retailer 2
-
$613 AUD
£339 GBP
View
Most Expensive
B
Brilliant Earth
21583373A · Oct 30
$1,324 AUD
$930 USD
View
2 more retailers have this diamond
Prices start from $293 AUDSave up to $1,031 AUD

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
$293 AUD