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Heart|Lab Grown|IGI

1.36ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG579399715

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG579399715

Diamond specifications and retailer prices

From $494 NZD
As of November 6, 2026
Save $1,814 NZD (79%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,308 NZD at Michael Trio · As of November 6, 2026
View at Michael Trio

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 LG579399715 or 579399715. Listed at 5 retailers as of November 6, 2026, with prices from $494 to $2,308, a $1,814 spread on the same certified stone. Michael Trio lists it at $2,308. 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 angle37°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579399715
Dimensions6.98 × 7.57 × 4.43 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.98 mm7.57 mm1.36 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579399715
Side View
Table 57.0%Crown 37°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 58.5%

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: Nov 6
Current: $2,308 NZD|Low: $494 NZD|High: $2,308 NZD|Avg: $1,099 NZD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3$494 NZD
Retailer 4$729 NZD
Retailer 5$808 NZD
Retailer 2$1,158 NZD
Michael Trio$2,308 NZD

4 data points across 5 retailers

5 retailers$494 NZD to $2,308 NZD

A
Cheapest Retailer
-
$494 NZD
Final sale: no returns
A
Retailer 2
-
$729 NZD
View
B+
Retailer 3
-
$808 NZD
View
B+
Retailer 4
-
$1,158 NZD
View
Most Expensive
B
Michael Trio
5773730690 · Nov 6
$2,308 NZD
SGD 1,729 SGD
View
4 more retailers have this diamond
Prices start from $494 NZDSave up to $1,814 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
$494 NZD