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Oval|Lab Grown|IGI

10.40ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG549220745

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG549220745

Diamond specifications and retailer prices

From $2,663 AUD
£1,473 GBP
As of October 27, 2026
Save $18,691 AUD (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $21,354 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.4ct lab-grown oval diamond

This 10.4ct 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 LG549220745 or 549220745. Listed at 12 retailers as of October 27, 2026, with prices from $2,663 to $21,354, a $18,691 spread on the same certified stone. Brilliant Earth lists it at $21,354. 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

10.40
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG549220745
Dimensions17.79 × 12.25 × 7.72 mm
L/W Ratio1.45
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
17.79 mm12.25 mm10.40 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG549220745
Side View
Table 61.5%Crown 35.1°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.0%

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: $23,176 AUD|Low: $2,663 AUD|High: $23,176 AUD|Avg: $9,893 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$2,663 AUD
Retailer 10$3,377 AUD
Retailer 15$4,254 AUD
Retailer 7$4,355 AUD
Retailer 6$5,011 AUD
Retailer 9$5,089 AUD
Retailer 11$5,124 AUD
Retailer 5$5,747 AUD
Retailer 4$7,475 AUD
Retailer 2$7,922 AUD
Retailer 16$8,312 AUD
Retailer 12$13,021 AUD
Retailer 3$14,331 AUD
Retailer 13$15,987 AUD
Retailer 8$21,110 AUD
Brilliant Earth$23,176 AUD

11 data points across 16 retailers

12 retailers$2,663 AUD to $21,354 AUD

A
Cheapest Retailer
-
$2,663 AUD
£1,473 GBP
A
Retailer 2
-
$3,377 AUD
$2,372 USD
View
B+
Retailer 3
-
$4,254 AUD
$2,988 USD
View
B
Retailer 4
-
$5,089 AUD
£2,815 GBP
View
B+
Retailer 5
-
$5,124 AUD
$3,599 USD
View
B
Retailer 6
-
$7,475 AUD
$5,251 USD
View
B
Retailer 7
-
$7,922 AUD
$5,565 USD
View
B
Retailer 8
-
$8,312 AUD
$5,839 USD
View
B
Retailer 9
-
$13,021 AUD
$9,147 USD
View
B
Retailer 10
-
$14,331 AUD
$10,067 USD
View
B
Retailer 11
-
$15,987 AUD
$11,230 USD
View
Most Expensive
B
Brilliant Earth
22300764A · Oct 31
$21,354 AUD
$15,000 USD
View
11 more retailers have this diamond
Prices start from $2,663 AUDSave up to $18,691 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
10.40ct Oval
$2,663 AUD