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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 $471 USD
As of October 23, 2026
Save $1,677 USD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,000 USD at Brilliant Earth · As of October 29, 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 18 retailers as of October 23, 2026, with a 356% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
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 23
Current: $6,000 USD|Low: $458 USD|High: $6,000 USD|Avg: $1,321 USD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 18$471 USD
Retailer 11$489 USD
Retailer 10$526 USD
Retailer 16$527 USD
Retailer 3$584 USD
Retailer 6$640 USD
Retailer 15$725 USD
Retailer 2$859 USD
Retailer 5$913 USD
Retailer 9$919 USD
Retailer 12$963 USD
Retailer 14$1,312 USD
Retailer 4$1,363 USD
Retailer 7$1,394 USD
Retailer 8$1,849 USD
Retailer 17$1,877 USD
Retailer 13$2,148 USD
Brilliant Earth$6,000 USD

28 data points across 18 retailers

18 retailers$471 USD to $2,148 USD

A
Cheapest Retailer
-
$471 USD
A
Retailer 2
-
$489 USD
£385 GBP
View
A
Retailer 3
-
$526 USD
View
Final sale: no returns
A
Retailer 4
-
$527 USD
View
A
Retailer 5
-
$584 USD
View
A
Retailer 6
-
$640 USD
HK$5,000 HKD
View
A
Retailer 7
-
$725 USD
View
A
Retailer 8
-
$859 USD
€818 EUR
View
B+
Retailer 9
-
$913 USD
View
B+
Retailer 10
-
$919 USD
View
B+
Retailer 11
-
$963 USD
£758 GBP
View
B+
Retailer 12
-
$1,312 USD
A$2,018 AUD
View
B+
Retailer 13
-
$1,363 USD
View
B+
Retailer 14
-
$1,394 USD
View
B
Retailer 15
-
$1,849 USD
SGD 2,499 SGD
View
B
Retailer 16
-
$1,877 USD
View
B
Retailer 17
-
$2,148 USD
£1,691 GBP
View
Most Expensive
Brilliant Earth
14415188A · Oct 29
$6,000 USD
View
Price under review
17 more retailers have this diamond
Prices start from $471 USDSave up to $1,677 USD

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
$471 USD