Oval|Lab Grown|IGI

4.02ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG819657734

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG819657734

Diamond specifications and retailer prices

From $1,247 USD
A$1,918 AUD
As of October 29, 2026
10 retailers carry this diamond
Most expensive: $3,390 USD at Brilliant Earth · As of October 4, 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 LG819657734 or 819657734. Listed at 10 retailers as of October 29, 2026. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819657734
Dimensions12.79 × 8.96 × 5.51 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.79 mm8.96 mm4.02 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819657734
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 61.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $3,390 USD|Low: $406 USD|High: $3,490 USD|Avg: $1,308 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
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 17$406 USD
Retailer 15$472 USD
Retailer 7$507 USD
Retailer 8$554 USD
Retailer 6$561 USD
Retailer 12$670 USD
Retailer 10$752 USD
Retailer 16$861 USD
Retailer 4$864 USD
Retailer 11$896 USD
Retailer 18$1,156 USD
Retailer 2$1,247 USD
Retailer 3$1,360 USD
Retailer 13$1,717 USD
Retailer 5$1,805 USD
Retailer 14$1,942 USD
Retailer 9$2,451 USD
Brilliant Earth$3,390 USD

20 data points across 18 retailers

10 retailers

Retailer 1
-
$406 USD
Price last confirmed 22 days ago
Retailer 2
-
$507 USD
View
Price last confirmed 34 days ago
Retailer 3
-
$554 USD
View
Price last confirmed 30 days ago
Retailer 4
-
$1,156 USD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$1,247 USD
A$1,918 AUD
View
Retailer 6
-
$1,717 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$1,805 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$1,942 USD
£1,529 GBP
View
Price last confirmed 22 days ago
Retailer 9
-
$2,451 USD
View
Price last confirmed 37 days ago
Most Expensive
Brilliant Earth
20879826A · Oct 4
$3,390 USD
View
Price last confirmed 25 days ago
9 more retailers have this diamond
Prices start from $1,247 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.

B+
4.02ct Oval
$1,247 USD