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Heart|Lab Grown|IGI

4.02ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG670428266

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG670428266

Diamond specifications and retailer prices

From $868 NZD
£385 GBP
As of October 27, 2026
Save $4,775 NZD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,642 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.02ct lab-grown heart diamond

This 4.02ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG670428266 or 670428266. Listed at 17 retailers as of October 27, 2026, with prices from $868 to $5,642, a $4,775 spread on the same certified stone. Brilliant Earth lists it at $5,642. 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

4.02
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670428266
Dimensions10.10 × 11.06 × 6.49 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.10 mm11.06 mm4.02 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670428266
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $5,642 NZD|Low: $836 NZD|High: $10,646 NZD|Avg: $2,373 NZD|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 4$836 NZD
Retailer 13$868 NZD
Retailer 10$933 NZD
Retailer 18$935 NZD
Retailer 5$1,036 NZD
Retailer 12$1,113 NZD
Retailer 17$1,286 NZD
Retailer 2$1,554 NZD
Retailer 7$1,620 NZD
Retailer 9$1,631 NZD
Retailer 14$1,708 NZD
Retailer 16$2,327 NZD
Retailer 6$2,418 NZD
Retailer 8$2,473 NZD
Retailer 11$3,240 NZD
Retailer 3$3,330 NZD
Retailer 15$3,810 NZD
Brilliant Earth$5,642 NZD

28 data points across 18 retailers

17 retailers$868 NZD to $5,642 NZD

Retailer 1
-
$836 NZD
$471 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$868 NZD
£385 GBP
View
Retailer 3
-
$935 NZD
$527 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$1,036 NZD
$584 USD
View
A
Retailer 5
-
$1,113 NZD
HK$4,900 HKD
View
A
Retailer 6
-
$1,286 NZD
$725 USD
View
B+
Retailer 7
-
$1,554 NZD
€834 EUR
View
B+
Retailer 8
-
$1,620 NZD
$913 USD
View
B+
Retailer 9
-
$1,631 NZD
$919 USD
View
B+
Retailer 10
-
$1,708 NZD
£758 GBP
View
B+
Retailer 11
-
$2,327 NZD
A$2,018 AUD
View
B
Retailer 12
-
$2,418 NZD
$1,363 USD
View
B
Retailer 13
-
$2,473 NZD
$1,394 USD
View
B
Retailer 14
-
$3,240 NZD
SGD 2,468 SGD
View
B
Retailer 15
-
$3,330 NZD
$1,877 USD
View
B
Retailer 16
-
$3,810 NZD
£1,691 GBP
View
Most Expensive
B
Brilliant Earth
14415188A · Oct 31
$5,642 NZD
$3,180 USD
View
16 more retailers have this diamond
Prices start from $868 NZDSave up to $4,775 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
4.02ct Heart
$868 NZD