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Radiant|Lab Grown|IGI

1.08ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG605306601

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

Certificate IGI LG605306601

Diamond specifications and retailer prices

From £135 GBP
As of November 6, 2026
Save £1,030 GBP (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,404 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.08ct lab-grown radiant diamond

This 1.08ct 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 LG605306601 or 605306601. Listed at 24 retailers as of November 6, 2026, with a 762% 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

1.08
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605306601
Dimensions7.73 × 5.09 × 3.43 mm
L/W Ratio1.52
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
7.73 mm5.09 mm1.08 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605306601
Side View
Table 63.0%Crown 32°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 67.4%

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: £294 GBP|Low: £129 GBP|High: £1,165 GBP|Avg: £447 GBP|+1.3%
Retailer 1
Retailer 2
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Retailer 21
November 7, 2026
Retailer 13£134 GBP
Retailer 5£135 GBP
Retailer 3£150 GBP
Retailer 7£150 GBP
Retailer 15£174 GBP
Retailer 17£215 GBP
Retailer 4£239 GBP
Retailer 12£280 GBP
Retailer 1£294 GBP
Retailer 11£294 GBP
Retailer 19£333 GBP
Retailer 2£372 GBP
Retailer 18£403 GBP
Retailer 21£510 GBP
Retailer 6£533 GBP
Retailer 9£579 GBP
Retailer 16£772 GBP
Retailer 8£802 GBP
Retailer 10£840 GBP
Retailer 14£1,151 GBP
Retailer 20£1,165 GBP

39 data points across 21 retailers

24 retailers£135 GBP to £1,165 GBP

Retailer 1
-
£134 GBP
Price last confirmed 17 days ago
A
Retailer 2
-
£135 GBP
View
Final sale: no returns
Retailer 3
-
£150 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
£150 GBP
View
Retailer 5
-
£155 GBP
View
Price last confirmed 18 days ago
A
Retailer 6
-
£174 GBP
View
B+
Retailer 7
-
£215 GBP
View
A
Retailer 8
-
£239 GBP
View
A
Retailer 9
-
£280 GBP
View
A
Retailer 10
-
£294 GBP
View
A
Retailer 11
-
£333 GBP
View
A
Retailer 12
-
£372 GBP
View
Retailer 13
-
£403 GBP
View
Price last confirmed 12 days ago
B+
Retailer 14
-
£510 GBP
View
B+
Retailer 15
-
£533 GBP
View
B+
Retailer 16
-
£573 GBP
View
B+
Retailer 17
-
£579 GBP
View
B+
Retailer 18
-
£772 GBP
View
B
Retailer 19
-
£802 GBP
View
Retailer 20
-
£840 GBP
View
Price last confirmed 17 days ago
B
Retailer 21
-
£1,128 GBP
View
Retailer 22
-
£1,151 GBP
View
Price last confirmed 14 days ago
B
Retailer 23
-
£1,165 GBP
View
Most Expensive
Queensmith
LG605306601 · Oct 27
£1,404 GBP
View
Price last confirmed 10 days ago
23 more retailers have this diamond
Prices start from £135 GBPSave up to £1,030 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
1.08ct Radiant
£135 GBP