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Oval|Lab Grown|IGI

4.02ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG585304320

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG585304320

Diamond specifications and retailer prices

From $1,251 NZD
$705 USD
As of October 31, 2026
Save $4,764 NZD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,015 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.02ct lab-grown oval diamond

This 4.02ct 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 LG585304320 or 585304320. Listed at 13 retailers as of October 29, 2026, with prices from $1,251 to $6,015, a $4,764 spread on the same certified stone. Brilliant Earth lists it at $6,015. 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 angle34.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG585304320
Dimensions12.74 × 9.16 × 5.50 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.74 mm9.16 mm4.02 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG585304320
Side View
Table 59.0%Crown 34.4°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.0%

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 31
Current: $6,015 NZD|Low: $898 NZD|High: $6,192 NZD|Avg: $2,295 NZD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11$898 NZD
Retailer 3$994 NZD
Retailer 6$1,251 NZD
Retailer 10$1,556 NZD
Retailer 2$1,610 NZD
Retailer 4$1,645 NZD
Retailer 9$1,726 NZD
Retailer 8$2,433 NZD
Retailer 7$2,672 NZD
Retailer 5$3,671 NZD
Brilliant Earth$6,015 NZD

35 data points across 11 retailers

13 retailers$1,251 NZD to $6,015 NZD

Retailer 1
-
$802 NZD
$452 USD
Price last confirmed 38 days ago
Retailer 2
-
$898 NZD
$506 USD
View
Price last confirmed 35 days ago
Retailer 3
-
$981 NZD
$553 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$1,251 NZD
$705 USD
View
B+
Retailer 5
-
$1,556 NZD
$877 USD
View
A
Retailer 6
-
$1,610 NZD
€864 EUR
View
A
Retailer 7
-
$1,645 NZD
£730 GBP
View
A
Retailer 8
-
$1,726 NZD
$973 USD
View
B+
Retailer 9
-
$2,433 NZD
$1,371 USD
View
B+
Retailer 10
-
$2,672 NZD
$1,506 USD
View
Retailer 11
-
$3,196 NZD
$1,801 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$3,671 NZD
£1,629 GBP
View
Most Expensive
B
Brilliant Earth
7628933A · Oct 29
$6,015 NZD
$3,390 USD
View
12 more retailers have this diamond
Prices start from $1,251 NZDSave up to $4,764 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 Oval
$1,251 NZD