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Radiant|Lab Grown|IGI

5.26ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG787622943

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

Certificate IGI LG787622943

Diamond specifications and retailer prices

From £8,128 GBP
$10,890 USD
As of October 29, 2026
Save £19,980 GBP (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £28,108 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.26ct lab-grown radiant diamond

This 5.26ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787622943 or 787622943. Listed at 11 retailers as of October 29, 2026, with prices from £8,128 to £28,108, a £19,980 spread on the same certified stone. Taylor and Hart lists it at £28,108. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.26
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787622943
Dimensions12.14 × 8.82 × 5.73 mm
L/W Ratio1.38
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
12.14 mm8.82 mm5.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787622943
Side View
Table 63.0%Crown 44.7°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 65.0%

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: Oct 29
Current: £13,218 GBP|Low: £8,128 GBP|High: £51,018 GBP|Avg: £18,237 GBP|-40.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 30, 2026
Retailer 7£8,128 GBP
Retailer 9£8,902 GBP
Retailer 10£9,096 GBP
Retailer 6£9,370 GBP
Retailer 3£11,126 GBP
Retailer 1£13,218 GBP
Retailer 4£14,757 GBP
Retailer 5£15,719 GBP
Retailer 8£25,910 GBP
Taylor and Hart£28,108 GBP
Retailer 2£51,018 GBP

32 data points across 11 retailers

11 retailers£8,128 GBP to £28,108 GBP

A
Cheapest Retailer
-
£8,128 GBP
$10,890 USD
A
Retailer 2
-
£8,902 GBP
$11,928 USD
View
A
Retailer 3
-
£9,096 GBP
$12,188 USD
View
A
Retailer 4
-
£9,370 GBP
$12,555 USD
View
A
Retailer 5
-
£11,126 GBP
View
A
Retailer 6
-
£13,218 GBP
$17,710 USD
View
A
Retailer 7
-
£14,757 GBP
View
Retailer 8
-
£15,719 GBP
€20,059 EUR
View
Price last confirmed 7 days ago
B
Retailer 9
-
£25,910 GBP
$34,716 USD
View
Most Expensive
B
Taylor and Hart
XM26SG8 · Oct 30
£28,108 GBP
$37,662 USD
View
9 more retailers have this diamond
Prices start from £8,128 GBPSave up to £19,980 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
5.26ct Radiant
£8,128 GBP