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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 $705 USD
As of October 29, 2026
Save $2,685 USD (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,390 USD 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 12 retailers as of October 29, 2026, with prices from $705 to $3,390, a $2,685 spread on the same certified stone. Brilliant Earth lists it at $3,390. 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 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 29
Current: $3,390 USD|Low: $506 USD|High: $3,490 USD|Avg: $1,296 USD|-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 30, 2026
Retailer 11$506 USD
Retailer 3$560 USD
Retailer 5$705 USD
Retailer 10$877 USD
Retailer 2$927 USD
Retailer 7$958 USD
Retailer 9$973 USD
Retailer 8$1,371 USD
Retailer 6$1,506 USD
Retailer 4$2,069 USD
Brilliant Earth$3,390 USD

35 data points across 11 retailers

12 retailers$705 USD to $3,390 USD

Retailer 1
-
$452 USD
Price last confirmed 37 days ago
Retailer 2
-
$506 USD
View
Price last confirmed 34 days ago
Retailer 3
-
$553 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
$705 USD
View
B+
Retailer 5
-
$877 USD
View
A
Retailer 6
-
$927 USD
£730 GBP
View
A
Retailer 7
-
$973 USD
View
B+
Retailer 8
-
$1,371 USD
View
B+
Retailer 9
-
$1,506 USD
View
Retailer 10
-
$1,801 USD
View
Price last confirmed 32 days ago
B
Retailer 11
-
$2,069 USD
£1,629 GBP
View
Most Expensive
B
Brilliant Earth
7628933A · Oct 29
$3,390 USD
View
11 more retailers have this diamond
Prices start from $705 USDSave up to $2,685 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 Oval
$705 USD