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Oval|Lab Grown|IGI

4.00ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG790603035

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG790603035

Diamond specifications and retailer prices

From $1,299 NZD
$732 USD
As of October 29, 2026
Save $4,787 NZD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,086 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct lab-grown oval 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 LG790603035 or 790603035. Listed at 14 retailers as of October 29, 2026, with prices from $1,299 to $6,086, a $4,787 spread on the same certified stone. Brilliant Earth lists it at $6,086. 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

4.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790603035
Dimensions12.64 × 8.97 × 5.40 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.64 mm8.97 mm4.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790603035
Side View
Table 61.0%Crown 34.1°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 60.2%

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: Oct 29
Current: $6,086 NZD|Low: $1,247 NZD|High: $24,645 NZD|Avg: $2,933 NZD|-3.1%
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
October 31, 2026
Retailer 11$1,299 NZD
Retailer 7$1,348 NZD
Retailer 4$1,412 NZD
Retailer 3$1,506 NZD
Retailer 12$1,506 NZD
Retailer 8$1,819 NZD
Retailer 5$2,106 NZD
Retailer 2$2,418 NZD
Retailer 13$2,443 NZD
Retailer 6$2,578 NZD
Retailer 10$3,710 NZD
Retailer 14$4,235 NZD
Retailer 9$5,924 NZD
Brilliant Earth$6,086 NZD

43 data points across 14 retailers

14 retailers$1,299 NZD to $6,086 NZD

A
Cheapest Retailer
-
$1,299 NZD
$732 USD
A
Retailer 2
-
$1,348 NZD
£598 GBP
View
A
Retailer 3
-
$1,412 NZD
$796 USD
View
A
Retailer 4
-
$1,506 NZD
$849 USD
View
Retailer 5
-
$1,506 NZD
$849 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$1,819 NZD
$1,025 USD
View
B+
Retailer 7
-
$2,106 NZD
$1,187 USD
View
B+
Retailer 8
-
$2,418 NZD
£1,073 GBP
View
B+
Retailer 9
-
$2,443 NZD
$1,377 USD
View
B+
Retailer 10
-
$2,578 NZD
$1,453 USD
View
B
Retailer 11
-
$3,710 NZD
$2,091 USD
View
B
Retailer 12
-
$4,235 NZD
$2,387 USD
View
B
Retailer 13
-
$5,924 NZD
£2,629 GBP
View
Most Expensive
B
Brilliant Earth
18790897A · Oct 29
$6,086 NZD
$3,430 USD
View
13 more retailers have this diamond
Prices start from $1,299 NZDSave up to $4,787 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
4.00ct Oval
$1,299 NZD