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Oval|Lab Grown|IGI

4.09ct E FL Oval Lab Grown Diamond

EX • E/FL • IGI LG780663854

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780663854

Diamond specifications and retailer prices

From $4,096 AUD
$2,877 USD
As of October 29, 2026
Save $19,024 AUD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $23,119 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.09ct lab-grown oval diamond

This 4.09ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663854 or 780663854. Listed at 12 retailers as of October 29, 2026, with prices from $4,096 to $23,119, a $19,024 spread on the same certified stone. Brilliant Earth lists it at $23,119. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.09
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663854
Dimensions12.66 × 9.08 × 5.68 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.66 mm9.08 mm4.09 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663854
Side View
Table 60.0%Crown 36.5°Girdle: MED-STKPavilion 40.5°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 29
Current: $23,119 AUD|Low: $4,096 AUD|High: $25,955 AUD|Avg: $11,603 AUD|-2.2%
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 30, 2026
Retailer 8$4,096 AUD
Retailer 10$4,774 AUD
Retailer 2$5,364 AUD
Retailer 7$5,894 AUD
Retailer 11$6,233 AUD
Retailer 9$8,005 AUD
Retailer 5$10,248 AUD
Retailer 4$10,250 AUD
Retailer 6$10,466 AUD
Retailer 3$13,630 AUD
Retailer 12$15,133 AUD
Brilliant Earth$23,119 AUD

40 data points across 12 retailers

12 retailers$4,096 AUD to $23,119 AUD

A
Cheapest Retailer
-
$4,096 AUD
$2,877 USD
A
Retailer 2
-
$4,774 AUD
HK$26,200 HKD
View
A
Retailer 3
-
$5,364 AUD
£2,967 GBP
View
A
Retailer 4
-
$5,894 AUD
$4,140 USD
View
A
Retailer 5
-
$6,233 AUD
€4,170 EUR
View
A
Retailer 6
-
$8,005 AUD
$5,623 USD
View
B+
Retailer 7
-
$10,248 AUD
$7,198 USD
View
Retailer 8
-
$10,250 AUD
$7,200 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$10,466 AUD
£5,789 GBP
View
B+
Retailer 10
-
$13,630 AUD
$9,574 USD
View
B+
Retailer 11
-
$15,133 AUD
$10,630 USD
View
Most Expensive
B
Brilliant Earth
19711969A · Oct 29
$23,119 AUD
$16,240 USD
View
11 more retailers have this diamond
Prices start from $4,096 AUDSave up to $19,024 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
4.09ct Oval
$4,096 AUD