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Heart|Lab Grown|IGI

1.03ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG839622790

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG839622790

Diamond specifications and retailer prices

From $307 NZD
As of November 6, 2026
Save $830 NZD (73%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,136 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.03ct lab-grown heart diamond

This 1.03ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG839622790 or 839622790. Listed at 3 retailers as of November 6, 2026, with prices from $307 to $1,136, a $830 spread on the same certified stone. Brilliant Earth lists it at $1,136. 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839622790
Dimensions6.49 × 7.10 × 4.01 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.49 mm7.10 mm1.03 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839622790
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 56.5%

Caratlytics Score

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

Last verified: Nov 6
Current: $1,136 NZD|Low: $307 NZD|High: $1,642 NZD|Avg: $928 NZD|-30.8%
Brilliant Earth
Retailer 2
Retailer 3
November 5, 2026
Retailer 3$307 NZD
Retailer 2$608 NZD
Brilliant Earth$1,136 NZD

31 data points across 3 retailers

3 retailers$307 NZD to $1,136 NZD

A
Cheapest Retailer
-
$307 NZD
Final sale: no returns
B+
Retailer 2
-
$608 NZD
View
Most Expensive
B
Brilliant Earth
21583220A · Nov 6
$1,136 NZD
$630 USD
View
2 more retailers have this diamond
Prices start from $307 NZDSave up to $830 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
1.03ct Heart
$307 NZD