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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 £1,352 GBP
As of October 27, 2026
Save £10,709 GBP (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £12,061 GBP 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 £1,352 to £12,061, a £10,709 spread on the same certified stone. Brilliant Earth lists it at £12,061. 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

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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: £13,083 GBP|Low: £1,352 GBP|High: £13,083 GBP|Avg: £5,530 GBP
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£1,352 GBP
Retailer 10£1,905 GBP
Retailer 15£2,399 GBP
Retailer 7£2,455 GBP
Retailer 6£2,743 GBP
Retailer 9£2,872 GBP
Retailer 11£2,890 GBP
Retailer 5£3,245 GBP
Retailer 4£4,202 GBP
Retailer 2£4,206 GBP
Retailer 16£5,030 GBP
Retailer 12£7,338 GBP
Retailer 3£8,092 GBP
Retailer 13£9,016 GBP
Retailer 8£11,919 GBP
Brilliant Earth£13,083 GBP

11 data points across 16 retailers

11 retailers£1,352 GBP to £12,061 GBP

A
Cheapest Retailer
-
£1,352 GBP
A
Retailer 2
-
£1,905 GBP
$2,552 USD
View
B+
Retailer 3
-
£2,399 GBP
$3,215 USD
View
B
Retailer 4
-
£2,872 GBP
View
B+
Retailer 5
-
£2,890 GBP
$3,872 USD
View
B
Retailer 6
-
£4,202 GBP
$5,631 USD
View
B
Retailer 7
-
£5,030 GBP
$6,739 USD
View
B
Retailer 8
-
£7,338 GBP
$9,832 USD
View
B
Retailer 9
-
£8,092 GBP
$10,842 USD
View
B
Retailer 10
-
£9,016 GBP
$12,080 USD
View
Most Expensive
B
Brilliant Earth
22301497A · Oct 31
£12,061 GBP
$16,160 USD
View
10 more retailers have this diamond
Prices start from £1,352 GBPSave up to £10,709 GBP

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
£1,352 GBP