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Radiant|Lab Grown|IGI

1.43ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG644443269

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

Certificate IGI LG644443269

Diamond specifications and retailer prices

From £182 GBP
As of November 6, 2026
Save £1,536 GBP (89%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £1,965 GBP at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 1.43ct lab-grown radiant diamond

This 1.43ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG644443269 or 644443269. Listed at 27 retailers as of November 6, 2026, with a 843% 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

1.43
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644443269
Dimensions8.38 × 5.59 × 3.63 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
8.38 mm5.59 mm1.43 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644443269
Side View
Table 62.0%Crown 37.6°Girdle: MediumPavilion 33°Culet: NoneDepth 64.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £1,718 GBP|Low: £179 GBP|High: £1,718 GBP|Avg: £563 GBP
Brilliant Earth
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November 7, 2026
Retailer 14£179 GBP
Retailer 7£182 GBP
Retailer 5£202 GBP
Retailer 11£208 GBP
Retailer 15£223 GBP
Retailer 18£234 GBP
Retailer 22£286 GBP
Retailer 6£306 GBP
Retailer 17£366 GBP
Retailer 13£377 GBP
Retailer 23£389 GBP
Retailer 2£418 GBP
Retailer 21£422 GBP
Retailer 20£545 GBP
Retailer 4£634 GBP
Retailer 3£651 GBP
Retailer 8£716 GBP
Retailer 16£755 GBP
Retailer 10£873 GBP
Retailer 19£890 GBP
Retailer 9£934 GBP
Retailer 12£1,397 GBP
Retailer 24£1,561 GBP
Brilliant Earth£1,718 GBP

30 data points across 24 retailers

27 retailers£182 GBP to £1,718 GBP

Retailer 1
-
£179 GBP
Price last confirmed 17 days ago
A
Retailer 2
-
£182 GBP
View
Final sale: no returns
A
Retailer 3
-
£202 GBP
View
Retailer 4
-
£208 GBP
View
Price last confirmed 18 days ago
Retailer 5
-
£223 GBP
View
Price last confirmed 22 days ago
A
Retailer 6
-
£234 GBP
View
B+
Retailer 7
-
£286 GBP
View
A
Retailer 8
-
£306 GBP
View
A
Retailer 9
-
£377 GBP
View
A
Retailer 10
-
£389 GBP
View
A
Retailer 11
-
£418 GBP
View
A
Retailer 12
-
£422 GBP
View
A
Retailer 13
-
£545 GBP
View
A
Retailer 14
-
£634 GBP
View
A
Retailer 15
-
£651 GBP
View
B+
Retailer 16
-
£716 GBP
View
B+
Retailer 17
-
£755 GBP
View
B+
Retailer 18
-
£873 GBP
View
B+
Retailer 19
-
£890 GBP
View
B+
Retailer 20
-
£934 GBP
View
Retailer 21
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£944 GBP
View
Price last confirmed 24 days ago
Retailer 22
-
£1,397 GBP
View
Price last confirmed 33 days ago
Retailer 23
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£1,397 GBP
View
Price last confirmed 17 days ago
B
Retailer 24
-
£1,561 GBP
View
B
Retailer 25
-
£1,718 GBP
View
Retailer 26
-
£1,869 GBP
View
Price last confirmed 11 days ago
Most Expensive
Brilliant Earth
11061940A · Oct 24
£1,965 GBP
$2,630 USD
View
Price last confirmed 13 days ago
26 more retailers have this diamond
Prices start from £182 GBPSave up to £1,536 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
1.43ct Radiant
£182 GBP