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Oval|Lab Grown|IGI

4.05ct E SI2 Oval Lab Grown Diamond

VG • E/SI2 • IGI LG839647951

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839647951

Diamond specifications and retailer prices

From $883 AUD
£488 GBP
As of October 27, 2026
Save $6,177 AUD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,060 AUD at Brilliant Earth · As of October 29, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG839647951 or 839647951. Listed at 11 retailers as of October 27, 2026, with prices from $883 to $7,060, a $6,177 spread on the same certified stone. Brilliant Earth lists it at $7,060. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.05
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647951
Dimensions12.44 × 8.87 × 5.77 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.44 mm8.87 mm4.05 ctE / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647951
Side View
Table 59.0%Crown 33.5°Girdle: STK-THKPavilion 42°Culet: NoneDepth 65.1%

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 27
Current: $7,060 AUD|Low: $881 AUD|High: $7,060 AUD|Avg: $3,442 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 27, 2026
Retailer 2$883 AUD
Retailer 10$921 AUD
Retailer 9$1,111 AUD
Retailer 6$1,571 AUD
Retailer 5$1,585 AUD
Retailer 4$2,293 AUD
Retailer 7$2,532 AUD
Retailer 3$3,133 AUD
Retailer 11$3,228 AUD
Retailer 12$3,879 AUD
Retailer 8$4,436 AUD
Brilliant Earth$7,060 AUD

26 data points across 12 retailers

11 retailers$883 AUD to $7,060 AUD

A
Cheapest Retailer
-
$883 AUD
£488 GBP
A
Retailer 2
-
$921 AUD
$647 USD
View
Final sale: no returns
A
Retailer 3
-
$1,111 AUD
HK$6,100 HKD
View
B+
Retailer 4
-
$1,571 AUD
$1,104 USD
View
B+
Retailer 5
-
$1,585 AUD
£877 GBP
View
B
Retailer 6
-
$2,293 AUD
$1,611 USD
View
B+
Retailer 7
-
$2,532 AUD
$1,779 USD
View
B
Retailer 8
-
$3,228 AUD
SGD 3,065 SGD
View
Retailer 9
-
$3,879 AUD
$2,725 USD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$4,436 AUD
£2,454 GBP
View
Most Expensive
B
Brilliant Earth
21808562A · Oct 29
$7,060 AUD
$4,960 USD
View
10 more retailers have this diamond
Prices start from $883 AUDSave up to $6,177 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
4.05ct Oval
$883 AUD