CaratHunter
Plans
Radiant|Lab Grown|IGI

1.00ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG743556650

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

Certificate IGI LG743556650

Diamond specifications and retailer prices

From £137 GBP
As of November 6, 2026
Save £1,036 GBP (88%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,404 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1ct lab-grown radiant diamond

This 1ct 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 LG743556650 or 743556650. Listed at 26 retailers as of November 6, 2026, with a 758% 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

1.00
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743556650
Dimensions7.52 × 5.06 × 3.24 mm
L/W Ratio1.49
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
7.52 mm5.06 mm1.00 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743556650
Side View
Table 61.0%Crown 37.6°Girdle: MediumPavilion 35.7°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £284 GBP|Low: £130 GBP|High: £1,173 GBP|Avg: £437 GBP
Retailer 1
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 11£135 GBP
Retailer 7£137 GBP
Retailer 4£152 GBP
Retailer 14£157 GBP
Retailer 12£176 GBP
Retailer 19£217 GBP
Retailer 5£239 GBP
Retailer 1£284 GBP
Retailer 15£299 GBP
Retailer 3£325 GBP
Retailer 18£325 GBP
Retailer 20£332 GBP
Retailer 16£409 GBP
Retailer 2£516 GBP
Retailer 6£539 GBP
Retailer 9£582 GBP
Retailer 10£781 GBP
Retailer 17£784 GBP
Retailer 8£807 GBP
Retailer 13£1,128 GBP
Retailer 21£1,173 GBP

40 data points across 21 retailers

26 retailers£137 GBP to £1,173 GBP

Retailer 1
-
£135 GBP
Price last confirmed 17 days ago
A
Retailer 2
-
£137 GBP
View
Final sale: no returns
A
Retailer 3
-
£152 GBP
View
Retailer 4
-
£157 GBP
View
Price last confirmed 18 days ago
Retailer 5
-
£168 GBP
View
Price last confirmed 22 days ago
A
Retailer 6
-
£176 GBP
View
B+
Retailer 7
-
£217 GBP
View
A
Retailer 8
-
£239 GBP
View
A
Retailer 9
-
£284 GBP
View
A
Retailer 10
-
£299 GBP
View
A
Retailer 11
-
£325 GBP
View
A
Retailer 12
-
£325 GBP
View
A
Retailer 13
-
£332 GBP
View
A
Retailer 14
-
£409 GBP
View
B+
Retailer 15
-
£516 GBP
View
B+
Retailer 16
-
£539 GBP
View
B+
Retailer 17
-
£580 GBP
View
B+
Retailer 18
-
£582 GBP
View
Retailer 19
-
£781 GBP
View
Price last confirmed 17 days ago
B+
Retailer 20
-
£784 GBP
View
B
Retailer 21
-
£807 GBP
View
Retailer 22
-
£876 GBP
View
Price last confirmed 17 days ago
B
Retailer 23
-
£1,038 GBP
View
Retailer 24
-
£1,128 GBP
View
Price last confirmed 14 days ago
B
Retailer 25
-
£1,173 GBP
View
Most Expensive
Queensmith
LG743556650 · Oct 27
£1,404 GBP
View
Price last confirmed 10 days ago
25 more retailers have this diamond
Prices start from £137 GBPSave up to £1,036 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
1.00ct Radiant
£137 GBP