Radiant|Lab Grown|IGI

1.26ct D IF Radiant Lab Grown Diamond

GD • D/IF • IGI LG743522903

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

Certificate IGI LG743522903

Diamond specifications and retailer prices

From £189 GBP
As of November 4, 2026
Save £649 GBP (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,400 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.26ct lab-grown radiant diamond

This 1.26ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG743522903 or 743522903. Listed at 18 retailers as of November 2, 2026, with a 344% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.26
Carat
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743522903
Dimensions7.96 × 5.29 × 3.52 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.96 mm5.29 mm1.26 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743522903
Side View
Table 61.0%Crown 40.5°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 66.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,400 GBP|Low: £189 GBP|High: £1,419 GBP|Avg: £629 GBP|-1.3%
Rare Carat
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
November 4, 2026
Retailer 12£189 GBP
Retailer 6£261 GBP
Retailer 5£355 GBP
Retailer 9£361 GBP
Retailer 2£387 GBP
Retailer 10£444 GBP
Retailer 4£485 GBP
Retailer 7£511 GBP
Retailer 11£605 GBP
Retailer 14£675 GBP
Retailer 3£711 GBP
Retailer 13£813 GBP
Retailer 8£838 GBP
Rare Carat£1,400 GBP

41 data points across 14 retailers

18 retailers£189 GBP to £838 GBP

A
Cheapest Retailer
-
£189 GBP
Final sale: no returns
Retailer 2
-
£202 GBP
View
Price last confirmed 33 days ago
Retailer 3
-
£244 GBP
View
Price last confirmed 38 days ago
Retailer 4
-
£261 GBP
View
Price last confirmed 32 days ago
A
Retailer 5
-
£355 GBP
View
A
Retailer 6
-
£361 GBP
View
A
Retailer 7
-
£387 GBP
View
B+
Retailer 8
-
£444 GBP
View
Retailer 9
-
£485 GBP
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£511 GBP
View
B+
Retailer 11
-
£605 GBP
View
B+
Retailer 12
-
£675 GBP
View
B
Retailer 13
-
£711 GBP
View
Retailer 14
-
£758 GBP
View
Price last confirmed 9 days ago
B
Retailer 15
-
£813 GBP
View
B
Retailer 16
-
£838 GBP
View
Retailer 17
-
£841 GBP
View
Price last confirmed 35 days ago
Most Expensive
Rare Carat
PV4-39A_l_743522903 · Oct 18
£1,400 GBP
$1,890 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from £189 GBPSave up to £649 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
1.26ct Radiant
£189 GBP