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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 $620 USD
£488 GBP
As of October 27, 2026
Save $4,340 USD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,960 USD 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 $620 to $4,960, a $4,340 spread on the same certified stone. Brilliant Earth lists it at $4,960. 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
Color
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: $4,960 USD|Low: $619 USD|High: $4,960 USD|Avg: $2,418 USD
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$620 USD
Retailer 10$647 USD
Retailer 9$781 USD
Retailer 6$1,104 USD
Retailer 5$1,113 USD
Retailer 4$1,611 USD
Retailer 7$1,779 USD
Retailer 3$2,201 USD
Retailer 11$2,268 USD
Retailer 12$2,725 USD
Retailer 8$3,117 USD
Brilliant Earth$4,960 USD

26 data points across 12 retailers

11 retailers$620 USD to $4,960 USD

A
Cheapest Retailer
-
$620 USD
£488 GBP
A
Retailer 2
-
$647 USD
View
Final sale: no returns
A
Retailer 3
-
$781 USD
HK$6,100 HKD
View
B+
Retailer 4
-
$1,104 USD
View
B+
Retailer 5
-
$1,113 USD
£877 GBP
View
B
Retailer 6
-
$1,611 USD
View
B+
Retailer 7
-
$1,779 USD
View
B
Retailer 8
-
$2,268 USD
SGD 3,065 SGD
View
Retailer 9
-
$2,725 USD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$3,117 USD
£2,454 GBP
View
Most Expensive
B
Brilliant Earth
21808562A · Oct 29
$4,960 USD
View
10 more retailers have this diamond
Prices start from $620 USDSave up to $4,340 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
4.05ct Oval
$620 USD