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Heart|Lab Grown|IGI

1.02ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG843651742

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843651742

Diamond specifications and retailer prices

From $310 NZD
As of November 6, 2026
Save $844 NZD (73%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,154 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.02ct lab-grown heart diamond

This 1.02ct 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 LG843651742 or 843651742. Listed at 3 retailers as of November 6, 2026, with prices from $310 to $1,154, a $844 spread on the same certified stone. Brilliant Earth lists it at $1,154. 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

1.02
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843651742
Dimensions6.27 × 6.96 × 4.15 mm
L/W Ratio1.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.27 mm6.96 mm1.02 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843651742
Side View
Table 59.0%Crown 35.6°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 59.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,154 NZD|Low: $310 NZD|High: $1,154 NZD|Avg: $633 NZD
Brilliant Earth
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$310 NZD
Retailer 2$621 NZD
Brilliant Earth$1,154 NZD

27 data points across 3 retailers

3 retailers$310 NZD to $1,154 NZD

A
Cheapest Retailer
-
$310 NZD
Final sale: no returns
B+
Retailer 2
-
$621 NZD
View
Most Expensive
B
Brilliant Earth
21781822A · Nov 6
$1,154 NZD
$640 USD
View
2 more retailers have this diamond
Prices start from $310 NZDSave up to $844 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
1.02ct Heart
$310 NZD