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Oval|Lab Grown|IGI

1.51ct F VS1 Oval Lab Grown Diamond

EX • F/VS1 • IGI LG818682051

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818682051

Diamond specifications and retailer prices

From £180 GBP
As of November 3, 2026
Save £901 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,081 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818682051 or 818682051. Listed at 21 retailers as of November 3, 2026, with prices from £180 to £1,081, a £901 spread on the same certified stone. Brilliant Earth lists it at £1,081. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818682051
Dimensions8.98 × 6.52 × 4.11 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.98 mm6.52 mm1.51 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818682051
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.0%

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: Nov 3
Current: £1,081 GBP|Low: £177 GBP|High: £1,081 GBP|Avg: £517 GBP
Brilliant Earth
Retailer 2
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Retailer 20
November 5, 2026
Retailer 11£180 GBP
Retailer 9£201 GBP
Retailer 6£209 GBP
Retailer 3£224 GBP
Retailer 20£224 GBP
Retailer 14£261 GBP
Retailer 18£376 GBP
Retailer 5£385 GBP
Retailer 16£386 GBP
Retailer 2£420 GBP
Retailer 17£464 GBP
Retailer 19£521 GBP
Retailer 15£576 GBP
Retailer 7£694 GBP
Retailer 4£719 GBP
Retailer 10£723 GBP
Retailer 8£757 GBP
Retailer 13£893 GBP
Retailer 12£910 GBP
Brilliant Earth£1,081 GBP

25 data points across 20 retailers

21 retailers£180 GBP to £1,081 GBP

A
Cheapest Retailer
-
£180 GBP
A
Retailer 2
-
£201 GBP
View
Final sale: no returns
A
Retailer 3
-
£209 GBP
View
A
Retailer 4
-
£224 GBP
View
Retailer 5
-
£224 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£261 GBP
View
A
Retailer 7
-
£376 GBP
View
A
Retailer 8
-
£385 GBP
View
A
Retailer 9
-
£386 GBP
View
A
Retailer 10
-
£420 GBP
View
A
Retailer 11
-
£464 GBP
View
Retailer 12
-
£521 GBP
View
Price last confirmed 9 days ago
B+
Retailer 13
-
£576 GBP
View
Retailer 14
-
£673 GBP
View
Price last confirmed 31 days ago
B
Retailer 15
-
£694 GBP
View
B+
Retailer 16
-
£719 GBP
View
B+
Retailer 17
-
£723 GBP
View
B+
Retailer 18
-
£757 GBP
View
B
Retailer 19
-
£893 GBP
View
B
Retailer 20
-
£910 GBP
View
Most Expensive
B
Brilliant Earth
21636634A · Nov 3
£1,081 GBP
$1,460 USD
View
20 more retailers have this diamond
Prices start from £180 GBPSave up to £901 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
1.51ct Oval
£180 GBP