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Oval|Lab Grown|IGI

10.51ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG598338536

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG598338536

Diamond specifications and retailer prices

From £1,409 GBP
As of October 27, 2026
Save £9,888 GBP (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £11,297 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.51ct lab-grown oval diamond

This 10.51ct 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 LG598338536 or 598338536. Listed at 11 retailers as of October 27, 2026, with prices from £1,409 to £11,297, a £9,888 spread on the same certified stone. Brilliant Earth lists it at £11,297. 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

10.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598338536
Dimensions17.56 × 12.40 × 7.79 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
17.56 mm12.40 mm10.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598338536
Side View
Table 61.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: £12,258 GBP|Low: £1,409 GBP|High: £14,979 GBP|Avg: £5,999 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 13£1,409 GBP
Retailer 9£1,786 GBP
Retailer 14£2,250 GBP
Retailer 6£2,299 GBP
Retailer 5£2,650 GBP
Retailer 2£2,692 GBP
Retailer 10£2,710 GBP
Retailer 4£3,040 GBP
Retailer 3£3,952 GBP
Retailer 15£4,441 GBP
Retailer 11£6,886 GBP
Retailer 16£7,582 GBP
Retailer 12£8,458 GBP
Retailer 7£11,167 GBP
Brilliant Earth£12,258 GBP
Retailer 8£14,979 GBP

11 data points across 16 retailers

11 retailers£1,409 GBP to £11,297 GBP

A
Cheapest Retailer
-
£1,409 GBP
A
Retailer 2
-
£1,786 GBP
$2,397 USD
View
B+
Retailer 3
-
£2,250 GBP
$3,020 USD
View
B
Retailer 4
-
£2,692 GBP
View
B+
Retailer 5
-
£2,710 GBP
$3,636 USD
View
B
Retailer 6
-
£3,952 GBP
$5,303 USD
View
B
Retailer 7
-
£4,441 GBP
$5,959 USD
View
B
Retailer 8
-
£6,886 GBP
$9,241 USD
View
B
Retailer 9
-
£7,582 GBP
$10,174 USD
View
B
Retailer 10
-
£8,458 GBP
$11,350 USD
View
Most Expensive
B
Brilliant Earth
22301488A · Oct 31
£11,297 GBP
$15,160 USD
View
10 more retailers have this diamond
Prices start from £1,409 GBPSave up to £9,888 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
10.51ct Oval
£1,409 GBP