CaratHunter
Plans
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 $1,125 AUD
$790 USD
As of October 28, 2026
Save $821 AUD (42%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,157 AUD 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
Colour
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: $3,157 AUD|Low: $1,125 AUD|High: $3,630 AUD|Avg: $1,895 AUD|-12.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 5$1,125 AUD
Retailer 2$1,314 AUD
Retailer 6$1,348 AUD
Retailer 3$1,385 AUD
Retailer 4$1,946 AUD
Retailer 7$2,836 AUD
MOH London$3,157 AUD

17 data points across 7 retailers

5 retailers$1,125 AUD to $1,946 AUD

B+
Cheapest Retailer
-
$1,125 AUD
$790 USD
A
Retailer 2
-
$1,314 AUD
$923 USD
View
A
Retailer 3
-
$1,385 AUD
£766 GBP
View
B+
Retailer 4
-
$1,946 AUD
$1,367 USD
View
Most Expensive
MOH London
LG776637371 · Oct 11
$3,157 AUD
£1,746 GBP
View
Price last confirmed 20 days ago
4 more retailers have this diamond
Prices start from $1,125 AUDSave up to $821 AUD

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
$1,125 AUD