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Radiant|Lab Grown|IGI

1.26ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG811654282

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

Certificate IGI LG811654282

Diamond specifications and retailer prices

From £188 GBP
As of November 4, 2026
Save £824 GBP (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,385 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 top-tier cut grade and certified by IGI LG811654282 or 811654282. Listed at 22 retailers as of November 4, 2026, with a 438% 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

1.26
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811654282
Dimensions7.55 × 5.28 × 3.32 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.55 mm5.28 mm1.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811654282
Side View
Table 68.0%Crown 42.2°Girdle: Slightly ThickPavilion 36.3°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
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: £1,385 GBP|Low: £181 GBP|High: £1,393 GBP|Avg: £534 GBP|-0.5%
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
Retailer 15
Retailer 16
Retailer 17
November 4, 2026
Retailer 5£188 GBP
Retailer 3£210 GBP
Retailer 6£233 GBP
Retailer 2£240 GBP
Retailer 17£315 GBP
Retailer 15£352 GBP
Retailer 12£403 GBP
Retailer 14£418 GBP
Retailer 10£441 GBP
Retailer 9£477 GBP
Retailer 11£572 GBP
Retailer 8£612 GBP
Retailer 16£718 GBP
Retailer 7£751 GBP
Retailer 13£936 GBP
Retailer 4£1,013 GBP
Rare Carat£1,385 GBP

37 data points across 17 retailers

22 retailers£188 GBP to £1,013 GBP

A
Cheapest Retailer
-
£188 GBP
A
Retailer 2
-
£210 GBP
View
Final sale: no returns
A
Retailer 3
-
£219 GBP
View
Retailer 4
-
£233 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£233 GBP
View
A
Retailer 6
-
£240 GBP
View
A
Retailer 7
-
£315 GBP
View
A
Retailer 8
-
£352 GBP
View
A
Retailer 9
-
£403 GBP
View
A
Retailer 10
-
£418 GBP
View
A
Retailer 11
-
£441 GBP
View
A
Retailer 12
-
£477 GBP
View
A
Retailer 13
-
£572 GBP
View
B+
Retailer 14
-
£612 GBP
View
B+
Retailer 15
-
£718 GBP
View
B+
Retailer 16
-
£751 GBP
View
B+
Retailer 17
-
£753 GBP
View
B+
Retailer 18
-
£789 GBP
View
B
Retailer 19
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£914 GBP
View
B+
Retailer 20
-
£936 GBP
View
B
Retailer 21
-
£1,013 GBP
View
Most Expensive
Rare Carat
DE7309_l_811654282 · Oct 18
£1,385 GBP
$1,870 USD
View
Price last confirmed 16 days ago
21 more retailers have this diamond
Prices start from £188 GBPSave up to £824 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
£188 GBP