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Oval|Lab Grown|IGI

11.20ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG546230806

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG546230806

Diamond specifications and retailer prices

From $2,579 AUD
£1,426 GBP
As of October 27, 2026
Save $20,427 AUD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $23,005 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 11.2ct lab-grown oval diamond

This 11.2ct lab-grown oval sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG546230806 or 546230806. Listed at 11 retailers as of October 27, 2026, with prices from $2,579 to $23,005, a $20,427 spread on the same certified stone. Brilliant Earth lists it at $23,005. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

11.20
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG546230806
Dimensions17.99 × 12.66 × 7.87 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
17.99 mm12.66 mm11.20 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG546230806
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

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 27
Current: $24,956 AUD|Low: $2,579 AUD|High: $24,956 AUD|Avg: $10,548 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
November 1, 2026
Retailer 14$2,579 AUD
Retailer 10$3,633 AUD
Retailer 15$4,577 AUD
Retailer 7$4,683 AUD
Retailer 6$5,232 AUD
Retailer 9$5,478 AUD
Retailer 11$5,512 AUD
Retailer 5$6,190 AUD
Retailer 4$8,016 AUD
Retailer 2$8,022 AUD
Retailer 16$9,594 AUD
Retailer 12$13,997 AUD
Retailer 3$15,435 AUD
Retailer 13$17,197 AUD
Retailer 8$22,734 AUD
Brilliant Earth$24,956 AUD

11 data points across 16 retailers

11 retailers$2,579 AUD to $23,005 AUD

A
Cheapest Retailer
-
$2,579 AUD
£1,426 GBP
A
Retailer 2
-
$3,633 AUD
$2,552 USD
View
B+
Retailer 3
-
$4,577 AUD
$3,215 USD
View
B
Retailer 4
-
$5,478 AUD
£3,030 GBP
View
B+
Retailer 5
-
$5,512 AUD
$3,872 USD
View
B
Retailer 6
-
$8,016 AUD
$5,631 USD
View
B
Retailer 7
-
$9,594 AUD
$6,739 USD
View
B
Retailer 8
-
$13,997 AUD
$9,832 USD
View
B
Retailer 9
-
$15,435 AUD
$10,842 USD
View
B
Retailer 10
-
$17,197 AUD
$12,080 USD
View
Most Expensive
B
Brilliant Earth
22301497A · Oct 31
$23,005 AUD
$16,160 USD
View
10 more retailers have this diamond
Prices start from $2,579 AUDSave up to $20,427 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
11.20ct Oval
$2,579 AUD