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Oval|Lab Grown|IGI

1.51ct F VS1 Oval Lab Grown Diamond

VG • F/VS1 • IGI LG800618212

Shape and cutting style on the report: Oval modified brilliant

Certificate IGI LG800618212

Diamond specifications and retailer prices

From £240 GBP
As of November 3, 2026
Save £1,093 GBP (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,333 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 very-good cut grade and certified by IGI LG800618212 or 800618212. Listed at 20 retailers as of November 3, 2026, with prices from £240 to £1,333, a £1,093 spread on the same certified stone. Brilliant Earth lists it at £1,333. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800618212
Dimensions9.32 × 6.42 × 3.58 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.32 mm6.42 mm1.51 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800618212
Side View
Table 58.0%Crown 34.5°Girdle: THK-VTKPavilion 37.7°Culet: LargeDepth 55.8%

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: Nov 3
Current: £1,333 GBP|Low: £230 GBP|High: £1,444 GBP|Avg: £635 GBP|-7.7%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
November 5, 2026
Retailer 5£240 GBP
Retailer 7£269 GBP
Retailer 19£279 GBP
Retailer 4£298 GBP
Retailer 6£298 GBP
Retailer 10£400 GBP
Retailer 9£407 GBP
Retailer 17£411 GBP
Retailer 16£482 GBP
Retailer 14£513 GBP
Retailer 2£527 GBP
Retailer 11£544 GBP
Retailer 12£700 GBP
Retailer 18£873 GBP
Retailer 3£958 GBP
Retailer 13£1,145 GBP
Retailer 8£1,178 GBP
Retailer 15£1,193 GBP
Brilliant Earth£1,333 GBP

40 data points across 19 retailers

20 retailers£240 GBP to £1,333 GBP

A
Cheapest Retailer
-
£240 GBP
A
Retailer 2
-
£269 GBP
View
Final sale: no returns
A
Retailer 3
-
£279 GBP
View
Retailer 4
-
£298 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£298 GBP
View
B+
Retailer 6
-
£400 GBP
View
B+
Retailer 7
-
£407 GBP
View
A
Retailer 8
-
£411 GBP
View
B+
Retailer 9
-
£482 GBP
View
B+
Retailer 10
-
£513 GBP
View
B+
Retailer 11
-
£527 GBP
View
B+
Retailer 12
-
£544 GBP
View
B
Retailer 13
-
£700 GBP
View
B
Retailer 14
-
£873 GBP
View
B
Retailer 15
-
£958 GBP
View
B
Retailer 16
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£990 GBP
View
B
Retailer 17
-
£1,145 GBP
View
B
Retailer 18
-
£1,178 GBP
View
B
Retailer 19
-
£1,193 GBP
View
Most Expensive
B
Brilliant Earth
19079022A · Nov 3
£1,333 GBP
$1,800 USD
View
19 more retailers have this diamond
Prices start from £240 GBPSave up to £1,093 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
£240 GBP