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Radiant|Lab Grown|IGI

1.50ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG761504453

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

Certificate IGI LG761504453

Diamond specifications and retailer prices

From £176 GBP
As of November 6, 2026
Save £1,632 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,808 GBP at Brilliant Earth · As of November 6, 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 LG761504453 or 761504453. Listed at 16 retailers as of November 6, 2026, with prices from £176 to £1,808, a £1,632 spread on the same certified stone. Brilliant Earth lists it at £1,808. 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 angle38.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761504453
Dimensions8.25 × 5.71 × 3.98 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.25 mm5.71 mm1.50 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761504453
Side View
Table 65.0%Crown 38.1°Girdle: ThinPavilion 39.3°Culet: NoneDepth 69.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £1,808 GBP|Low: £176 GBP|High: £1,860 GBP|Avg: £732 GBP|-2.8%
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
Retailer 17
November 6, 2026
Retailer 16£176 GBP
Retailer 13£196 GBP
Retailer 4£203 GBP
Retailer 2£267 GBP
Retailer 11£293 GBP
Retailer 9£374 GBP
Retailer 10£383 GBP
Retailer 8£415 GBP
Retailer 6£586 GBP
Retailer 3£616 GBP
Retailer 12£719 GBP
Retailer 17£771 GBP
Retailer 5£860 GBP
Retailer 15£959 GBP
Retailer 7£1,337 GBP
Retailer 14£1,681 GBP
Brilliant Earth£1,808 GBP

34 data points across 17 retailers

16 retailers£176 GBP to £1,808 GBP

A
Cheapest Retailer
-
£176 GBP
A
Retailer 2
-
£196 GBP
View
Final sale: no returns
A
Retailer 3
-
£203 GBP
View
A
Retailer 4
-
£267 GBP
View
B+
Retailer 5
-
£293 GBP
View
A
Retailer 6
-
£383 GBP
View
A
Retailer 7
-
£415 GBP
View
Retailer 8
-
£586 GBP
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£616 GBP
View
B+
Retailer 10
-
£719 GBP
View
B+
Retailer 11
-
£771 GBP
View
B+
Retailer 12
-
£860 GBP
View
B+
Retailer 13
-
£959 GBP
View
Retailer 14
-
£1,337 GBP
View
Price last confirmed 17 days ago
B
Retailer 15
-
£1,681 GBP
View
Most Expensive
B
Brilliant Earth
21416750Y · Nov 6
£1,808 GBP
$2,420 USD
View
15 more retailers have this diamond
Prices start from £176 GBPSave up to £1,632 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
£176 GBP