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Oval|Lab Grown|IGI

4.12ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG811635518

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG811635518

Diamond specifications and retailer prices

From $3,541 AUD
$2,488 USD
As of October 29, 2026
Save $19,546 AUD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $23,088 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.12ct lab-grown oval diamond

This 4.12ct 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 LG811635518 or 811635518. Listed at 14 retailers as of October 29, 2026, with prices from $3,541 to $23,088, a $19,546 spread on the same certified stone. Brilliant Earth lists it at $23,088. 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

4.12
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811635518
Dimensions13.03 × 9.10 × 5.48 mm
L/W Ratio1.43
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
13.03 mm9.10 mm4.12 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811635518
Side View
Table 60.0%Crown 35.2°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 60.2%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $23,088 AUD|Low: $3,530 AUD|High: $35,485 AUD|Avg: $10,553 AUD|-14.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 10$3,541 AUD
Retailer 7$3,665 AUD
Retailer 4$4,692 AUD
Retailer 6$5,318 AUD
Retailer 9$5,368 AUD
Retailer 12$5,504 AUD
Retailer 14$6,293 AUD
Retailer 13$6,356 AUD
Retailer 5$7,820 AUD
Retailer 3$10,085 AUD
Retailer 2$10,335 AUD
Retailer 8$15,548 AUD
Retailer 11$20,355 AUD
Brilliant Earth$23,088 AUD

33 data points across 14 retailers

14 retailers$3,541 AUD to $23,088 AUD

A
Cheapest Retailer
-
$3,541 AUD
$2,488 USD
A
Retailer 2
-
$3,665 AUD
$2,575 USD
View
Retailer 3
-
$4,692 AUD
$3,296 USD
View
Price last confirmed 28 days ago
Retailer 4
-
$5,318 AUD
$3,736 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$5,368 AUD
$3,771 USD
View
A
Retailer 6
-
$5,504 AUD
$3,867 USD
View
A
Retailer 7
-
$6,293 AUD
$4,421 USD
View
A
Retailer 8
-
$6,356 AUD
€4,253 EUR
View
Retailer 9
-
$7,820 AUD
$5,494 USD
View
Price last confirmed 30 days ago
Retailer 10
-
$10,085 AUD
$7,085 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$10,335 AUD
£5,717 GBP
View
B
Retailer 12
-
$15,548 AUD
$10,923 USD
View
B
Retailer 13
-
$20,355 AUD
$14,300 USD
View
Most Expensive
B
Brilliant Earth
21060298Y · Oct 29
$23,088 AUD
$16,220 USD
View
13 more retailers have this diamond
Prices start from $3,541 AUDSave up to $19,546 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
4.12ct Oval
$3,541 AUD