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Oval|Lab Grown|IGI

4.05ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG797669797

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG797669797

Diamond specifications and retailer prices

From $3,150 AUD
£1,743 GBP
As of October 29, 2026
Save $10,870 AUD (78%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $14,020 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG797669797 or 797669797. Listed at 24 retailers as of October 29, 2026, with prices from $3,150 to $14,020, a $10,870 spread on the same certified stone. Brilliant Earth lists it at $14,020. 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

4.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797669797
Dimensions12.92 × 8.87 × 5.58 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
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
12.92 mm8.87 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797669797
Side View
Table 59.0%Crown 35.6°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 62.9%

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: $14,020 AUD|Low: $3,112 AUD|High: $14,020 AUD|Avg: $6,259 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 12$3,150 AUD
Retailer 13$3,241 AUD
Retailer 17$3,527 AUD
Retailer 9$3,761 AUD
Retailer 15$3,761 AUD
Retailer 10$4,070 AUD
Retailer 11$5,161 AUD
Retailer 16$5,168 AUD
Retailer 6$5,654 AUD
Retailer 5$5,763 AUD
Retailer 4$5,935 AUD
Retailer 7$7,833 AUD
Retailer 2$8,004 AUD
Retailer 18$8,069 AUD
Retailer 3$8,789 AUD
Retailer 8$9,540 AUD
Retailer 14$10,215 AUD
Brilliant Earth$14,020 AUD

33 data points across 18 retailers

24 retailers$3,150 AUD to $14,020 AUD

A
Cheapest Retailer
-
$3,150 AUD
£1,743 GBP
A
Retailer 2
-
$3,241 AUD
$2,277 USD
View
A
Retailer 3
-
$3,527 AUD
$2,478 USD
View
A
Retailer 4
-
$3,628 AUD
$2,549 USD
View
Final sale: no returns
Retailer 5
-
$3,761 AUD
$2,642 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$3,761 AUD
$2,642 USD
View
A
Retailer 7
-
$3,993 AUD
$2,805 USD
View
A
Retailer 8
-
$4,070 AUD
$2,859 USD
View
A
Retailer 9
-
$5,161 AUD
£2,855 GBP
View
A
Retailer 10
-
$5,168 AUD
$3,631 USD
View
A
Retailer 11
-
$5,654 AUD
$3,972 USD
View
A
Retailer 12
-
$5,763 AUD
$4,049 USD
View
A
Retailer 13
-
$7,137 AUD
£3,948 GBP
View
A
Retailer 14
-
$7,833 AUD
$5,503 USD
View
A
Retailer 15
-
$8,004 AUD
ZAR 90,846 ZAR
View
Retailer 16
-
$8,069 AUD
View
Price last confirmed 7 days ago
Retailer 17
-
$8,789 AUD
$6,175 USD
View
Price last confirmed 8 days ago
B+
Retailer 18
-
$9,540 AUD
$6,702 USD
View
B+
Retailer 19
-
$9,826 AUD
$6,903 USD
View
B+
Retailer 20
-
$10,041 AUD
$7,054 USD
View
B+
Retailer 21
-
$10,215 AUD
£5,651 GBP
View
B+
Retailer 22
-
$10,617 AUD
$7,459 USD
View
B
Retailer 23
-
$13,136 AUD
$9,229 USD
View
Most Expensive
B
Brilliant Earth
19793666A · Oct 29
$14,020 AUD
$9,850 USD
View
23 more retailers have this diamond
Prices start from $3,150 AUDSave up to $10,870 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
$3,150 AUD