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Radiant|Lab Grown|IGI

1.05ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG734533277

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

Certificate IGI LG734533277

Diamond specifications and retailer prices

From £128 GBP
As of November 6, 2026
Save £1,098 GBP (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,404 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG734533277 or 734533277. Listed at 25 retailers as of November 6, 2026, with a 859% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734533277
Dimensions7.58 × 5.05 × 3.32 mm
L/W Ratio1.50
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
7.58 mm5.05 mm1.05 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734533277
Side View
Table 63.0%Crown 37.5°Girdle: MediumPavilion 35°Culet: NoneDepth 65.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £313 GBP|Low: £123 GBP|High: £1,098 GBP|Avg: £406 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 17
November 7, 2026
Retailer 16£128 GBP
Retailer 9£142 GBP
Retailer 6£148 GBP
Retailer 2£158 GBP
Retailer 7£158 GBP
Retailer 3£225 GBP
Retailer 5£248 GBP
Retailer 10£296 GBP
Retailer 1£313 GBP
Retailer 8£339 GBP
Retailer 11£426 GBP
Retailer 14£538 GBP
Retailer 4£562 GBP
Retailer 15£691 GBP
Retailer 13£811 GBP
Retailer 12£817 GBP
Retailer 17£1,098 GBP

46 data points across 17 retailers

25 retailers£128 GBP to £1,225 GBP

A
Cheapest Retailer
-
£128 GBP
A
Retailer 2
-
£142 GBP
View
Final sale: no returns
A
Retailer 3
-
£148 GBP
View
Retailer 4
-
£158 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
£158 GBP
View
B+
Retailer 6
-
£225 GBP
View
A
Retailer 7
-
£248 GBP
View
A
Retailer 8
-
£296 GBP
View
A
Retailer 9
-
£313 GBP
View
A
Retailer 10
-
£339 GBP
View
A
Retailer 11
-
£356 GBP
View
A
Retailer 12
-
£426 GBP
View
B+
Retailer 13
-
£538 GBP
View
B+
Retailer 14
-
£562 GBP
View
B+
Retailer 15
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£601 GBP
View
B
Retailer 16
-
£691 GBP
View
Retailer 17
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£790 GBP
View
Price last confirmed 62 days ago
Retailer 18
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£792 GBP
View
Price last confirmed 17 days ago
Retailer 19
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£811 GBP
View
Price last confirmed 17 days ago
B+
Retailer 20
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£817 GBP
View
B
Retailer 21
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£823 GBP
View
Retailer 22
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£840 GBP
View
Price last confirmed 40 days ago
B
Retailer 23
-
£1,098 GBP
View
B
Retailer 24
-
£1,225 GBP
View
Most Expensive
Queensmith
LG734533277 · Oct 27
£1,404 GBP
View
Price last confirmed 10 days ago
24 more retailers have this diamond
Prices start from £128 GBPSave up to £1,098 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
1.05ct Radiant
£128 GBP