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Radiant|Lab Grown|IGI

1.26ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG829603851

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

Certificate IGI LG829603851

Diamond specifications and retailer prices

From £207 GBP
As of November 4, 2026
Save £1,993 GBP (91%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,200 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG829603851 or 829603851. Listed at 17 retailers as of November 4, 2026, with prices from £207 to £2,200, a £1,993 spread on the same certified stone. Brilliant Earth lists it at £2,200. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG829603851
Dimensions7.46 × 5.27 × 3.55 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm5.27 mm1.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG829603851
Side View
Table 64.0%Crown 41.5°Girdle: Slightly ThickPavilion 41.1°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 4
Current: £236 GBP|Low: £207 GBP|High: £1,184 GBP|Avg: £571 GBP|-2.8%
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
November 4, 2026
Retailer 14£207 GBP
Retailer 1£236 GBP
Retailer 5£310 GBP
Retailer 8£348 GBP
Retailer 2£397 GBP
Retailer 16£413 GBP
Retailer 9£432 GBP
Retailer 4£473 GBP
Retailer 13£561 GBP
Retailer 11£610 GBP
Retailer 12£704 GBP
Retailer 15£775 GBP
Retailer 10£802 GBP
Retailer 6£900 GBP
Retailer 3£921 GBP
Retailer 7£1,171 GBP

19 data points across 16 retailers

17 retailers£207 GBP to £2,200 GBP

A
Cheapest Retailer
-
£207 GBP
Final sale: no returns
A
Retailer 2
-
£236 GBP
View
A
Retailer 3
-
£310 GBP
View
A
Retailer 4
-
£348 GBP
View
A
Retailer 5
-
£397 GBP
View
A
Retailer 6
-
£413 GBP
View
A
Retailer 7
-
£432 GBP
View
A
Retailer 8
-
£473 GBP
View
A
Retailer 9
-
£561 GBP
View
B+
Retailer 10
-
£610 GBP
View
B+
Retailer 11
-
£704 GBP
View
B+
Retailer 12
-
£775 GBP
View
B+
Retailer 13
-
£802 GBP
View
B+
Retailer 14
-
£900 GBP
View
B+
Retailer 15
-
£921 GBP
View
B+
Retailer 16
-
£1,171 GBP
View
Most Expensive
B
Brilliant Earth
21324949A · Nov 4
£2,200 GBP
$2,970 USD
View
16 more retailers have this diamond
Prices start from £207 GBPSave up to £1,993 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
£207 GBP