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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 $1,004 AUD
$705 USD
As of October 31, 2026
Save $3,822 AUD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,826 AUD 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 $1,004 to $4,826, a $3,822 spread on the same certified stone. Brilliant Earth lists it at $4,826. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,826 AUD|Low: $720 AUD|High: $4,968 AUD|Avg: $1,841 AUD|-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$720 AUD
Retailer 3$797 AUD
Retailer 6$1,004 AUD
Retailer 10$1,248 AUD
Retailer 2$1,291 AUD
Retailer 4$1,320 AUD
Retailer 9$1,385 AUD
Retailer 8$1,952 AUD
Retailer 7$2,144 AUD
Retailer 5$2,945 AUD
Brilliant Earth$4,826 AUD

35 data points across 11 retailers

13 retailers$1,004 AUD to $4,826 AUD

Retailer 1
-
$643 AUD
$452 USD
Price last confirmed 38 days ago
Retailer 2
-
$720 AUD
$506 USD
View
Price last confirmed 35 days ago
Retailer 3
-
$787 AUD
$553 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$1,004 AUD
$705 USD
View
B+
Retailer 5
-
$1,248 AUD
$877 USD
View
A
Retailer 6
-
$1,291 AUD
€864 EUR
View
A
Retailer 7
-
$1,320 AUD
£730 GBP
View
A
Retailer 8
-
$1,385 AUD
$973 USD
View
B+
Retailer 9
-
$1,952 AUD
$1,371 USD
View
B+
Retailer 10
-
$2,144 AUD
$1,506 USD
View
Retailer 11
-
$2,564 AUD
$1,801 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$2,945 AUD
£1,629 GBP
View
Most Expensive
B
Brilliant Earth
7628933A · Oct 29
$4,826 AUD
$3,390 USD
View
12 more retailers have this diamond
Prices start from $1,004 AUDSave up to $3,822 AUD

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
$1,004 AUD