Oval|Lab Grown|IGI

4.05ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG757526804

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG757526804

Diamond specifications and retailer prices

From $1,175 USD
As of October 30, 2026
3 retailers carry this diamond
Most expensive: $6,720 USD at Brilliant Earth · As of October 13, 2026
View at Brilliant Earth

About this 4.05ct lab-grown oval diamond

This 4.05ct 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 LG757526804 or 757526804. Listed at 3 retailers as of October 30, 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

4.05
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757526804
Dimensions12.53 × 9.02 × 5.67 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.53 mm9.02 mm4.05 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757526804
Side View
Table 60.0%Crown 37.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $6,720 USD|Low: $782 USD|High: $7,290 USD|Avg: $2,723 USD|-7.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 13, 2026
Retailer 6$782 USD
Retailer 5$1,175 USD
Retailer 7$1,249 USD
Retailer 8$2,006 USD
Retailer 4$2,186 USD
Retailer 3$2,485 USD
Retailer 2$4,901 USD
Brilliant Earth$6,720 USD

4 data points across 8 retailers

3 retailers

B+
Cheapest Retailer
-
$1,175 USD
Retailer 2
-
$2,485 USD
View
Price last confirmed 22 days ago
Most Expensive
Brilliant Earth
17817384A · Oct 13
$6,720 USD
View
Price under review
2 more retailers have this diamond
Prices start from $1,175 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+
4.05ct Oval
$1,175 USD