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Radiant|Lab Grown|IGI

1.51ct F VS2 Radiant Lab Grown Diamond

VG • F/VS2 • IGI LG771602456

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG771602456

Diamond specifications and retailer prices

From £144 GBP
As of November 4, 2026
Save £953 GBP (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,096 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG771602456 or 771602456. Listed at 18 retailers as of November 4, 2026, with prices from £144 to £1,096, a £953 spread on the same certified stone. Brilliant Earth lists it at £1,096. 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
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771602456
Dimensions7.78 × 5.59 × 3.81 mm
L/W Ratio1.39
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.78 mm5.59 mm1.51 ctF / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771602456
Side View
Table 66.0%Crown 46.8°Girdle: THK-VTKPavilion 34.6°Culet: NoneDepth 68.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,096 GBP|Low: £140 GBP|High: £1,289 GBP|Avg: £475 GBP|-14.9%
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 18
November 5, 2026
Retailer 3£144 GBP
Retailer 18£161 GBP
Retailer 14£167 GBP
Retailer 6£179 GBP
Retailer 10£180 GBP
Retailer 8£313 GBP
Retailer 2£322 GBP
Retailer 9£355 GBP
Retailer 17£424 GBP
Retailer 13£465 GBP
Retailer 15£574 GBP
Retailer 4£581 GBP
Retailer 5£613 GBP
Retailer 7£614 GBP
Retailer 12£626 GBP
Retailer 16£743 GBP
Retailer 11£832 GBP
Brilliant Earth£1,096 GBP

33 data points across 18 retailers

18 retailers£144 GBP to £1,096 GBP

A
Cheapest Retailer
-
£144 GBP
A
Retailer 2
-
£161 GBP
View
Final sale: no returns
A
Retailer 3
-
£167 GBP
View
A
Retailer 4
-
£179 GBP
View
Retailer 5
-
£180 GBP
View
Price last confirmed 11 days ago
B+
Retailer 6
-
£313 GBP
View
A
Retailer 7
-
£322 GBP
View
A
Retailer 8
-
£355 GBP
View
A
Retailer 9
-
£424 GBP
View
B+
Retailer 10
-
£465 GBP
View
B+
Retailer 11
-
£574 GBP
View
B+
Retailer 12
-
£581 GBP
View
B+
Retailer 13
-
£613 GBP
View
Retailer 14
-
£614 GBP
View
Price last confirmed 7 days ago
B+
Retailer 15
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£626 GBP
View
B
Retailer 16
-
£743 GBP
View
B
Retailer 17
-
£832 GBP
View
Most Expensive
B
Brilliant Earth
21496719A · Nov 4
£1,096 GBP
$1,480 USD
View
17 more retailers have this diamond
Prices start from £144 GBPSave up to £953 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 Radiant
£144 GBP