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Oval|Lab Grown|IGI

4.00ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG776637371

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG776637371

Diamond specifications and retailer prices

From $790 USD
As of October 28, 2026
Save $577 USD (42%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,217 USD at MOH London · As of October 11, 2026
View at MOH London

About this 4ct lab-grown oval diamond

This 4ct 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 LG776637371 or 776637371. Listed at 5 retailers as of October 28, 2026, with a 73% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776637371
Dimensions12.29 × 9.03 × 5.65 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.29 mm9.03 mm4.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776637371
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $2,217 USD|Low: $790 USD|High: $2,550 USD|Avg: $1,331 USD|-12.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 5$790 USD
Retailer 2$923 USD
Retailer 6$947 USD
Retailer 3$973 USD
Retailer 4$1,367 USD
Retailer 7$1,992 USD
MOH London$2,217 USD

17 data points across 7 retailers

5 retailers$790 USD to $1,367 USD

B+
Cheapest Retailer
-
$790 USD
A
Retailer 2
-
$923 USD
View
A
Retailer 3
-
$973 USD
£766 GBP
View
B+
Retailer 4
-
$1,367 USD
View
Most Expensive
MOH London
LG776637371 · Oct 11
$2,217 USD
£1,746 GBP
View
Price last confirmed 18 days ago
4 more retailers have this diamond
Prices start from $790 USDSave up to $577 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
4.00ct Oval
$790 USD