Oval|Lab Grown|IGI

4.00ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • IGI LG570365779

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG570365779

Diamond specifications and retailer prices

From $3,050 USD
As of October 29, 2026
2 retailers carry this diamond
Most expensive: $3,050 USD at Brilliant Earth
View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct lab-grown oval sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG570365779 or 570365779. Listed at 2 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

4.00
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570365779
Dimensions12.69 × 8.91 × 5.62 mm
L/W Ratio1.42
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
12.69 mm8.91 mm4.00 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570365779
Side View
Table 61.5%Crown 38°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $980 USD|Low: $631 USD|High: $2,112 USD|Avg: $1,148 USD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 18, 2026
Retailer 6$631 USD
Retailer 5$889 USD
Retailer 3$919 USD
Retailer 1$980 USD
Retailer 2$1,355 USD
Retailer 4$2,112 USD

3 data points across 6 retailers

2 retailers

Retailer 1
-
$1,965 USD
Price last confirmed 51 days ago
Most Expensive
B
Brilliant Earth
20779748A · Oct 29
$3,050 USD
View
1 more retailer has this diamond

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
4.00ct Oval
$3,050 USD