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Radiant|Lab Grown|IGI

1.50ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG662411648

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

Certificate IGI LG662411648

Diamond specifications and retailer prices

From £317 GBP
As of November 6, 2026
Save £1,566 GBP (83%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,883 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG662411648 or 662411648. Listed at 24 retailers as of November 5, 2026, with prices from £317 to £1,883, a £1,566 spread on the same certified stone. Brilliant Earth lists it at £1,883. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662411648
Dimensions8.43 × 5.43 × 3.82 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.43 mm5.43 mm1.50 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662411648
Side View
Table 64.0%Crown 38.5°Girdle: MediumPavilion 34.9°Culet: NoneDepth 70.3%

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 6
Current: £1,883 GBP|Low: £304 GBP|High: £1,883 GBP|Avg: £857 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
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Retailer 17
November 6, 2026
Retailer 4£317 GBP
Retailer 8£355 GBP
Retailer 6£393 GBP
Retailer 9£393 GBP
Retailer 16£501 GBP
Retailer 3£545 GBP
Retailer 2£616 GBP
Retailer 10£641 GBP
Retailer 13£678 GBP
Retailer 15£915 GBP
Retailer 14£999 GBP
Retailer 12£1,103 GBP
Retailer 7£1,263 GBP
Retailer 5£1,420 GBP
Retailer 11£1,440 GBP
Retailer 17£1,476 GBP
Brilliant Earth£1,883 GBP

43 data points across 17 retailers

24 retailers£317 GBP to £1,883 GBP

A
Cheapest Retailer
-
£317 GBP
A
Retailer 2
-
£355 GBP
View
Final sale: no returns
A
Retailer 3
-
£355 GBP
View
Retailer 4
-
£393 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
£393 GBP
View
A
Retailer 6
-
£501 GBP
View
A
Retailer 7
-
£545 GBP
View
A
Retailer 8
-
£616 GBP
View
B+
Retailer 9
-
£618 GBP
View
A
Retailer 10
-
£641 GBP
View
B+
Retailer 11
-
£678 GBP
View
Retailer 12
-
£915 GBP
View
Price last confirmed 9 days ago
B
Retailer 13
-
£994 GBP
View
Retailer 14
-
£999 GBP
View
Price last confirmed 8 days ago
B
Retailer 15
-
£1,103 GBP
View
B
Retailer 16
-
£1,263 GBP
View
B
Retailer 17
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£1,288 GBP
View
B
Retailer 18
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£1,420 GBP
View
B
Retailer 19
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£1,440 GBP
View
B
Retailer 20
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£1,471 GBP
View
Retailer 21
-
£1,476 GBP
View
Price last confirmed 17 days ago
B
Retailer 22
-
£1,757 GBP
View
B
Retailer 23
-
£1,883 GBP
View
Most Expensive
B
Brilliant Earth
16913852A · Nov 5
£1,883 GBP
$2,520 USD
View
23 more retailers have this diamond
Prices start from £317 GBPSave up to £1,566 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
1.50ct Radiant
£317 GBP