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Radiant|Lab Grown|IGI

5.05ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG665415779

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

Certificate IGI LG665415779

Diamond specifications and retailer prices

From £6,501 GBP
$8,710 USD
As of October 31, 2026
Save £21,746 GBP (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £28,247 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.05ct lab-grown radiant diamond

This 5.05ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665415779 or 665415779. Listed at 22 retailers as of October 30, 2026, with prices from £6,501 to £28,247, a £21,746 spread on the same certified stone. Taylor and Hart lists it at £28,247. 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

5.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.8°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665415779
Dimensions11.91 × 8.41 × 5.69 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.91 mm8.41 mm5.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665415779
Side View
Table 66.0%Crown 48.8°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £11,217 GBP|Low: £6,501 GBP|High: £46,205 GBP|Avg: £13,842 GBP|-8.2%
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
Retailer 17
Taylor and Hart
October 30, 2026
Retailer 16£6,501 GBP
Retailer 8£7,357 GBP
Retailer 3£7,651 GBP
Retailer 7£8,239 GBP
Retailer 2£8,434 GBP
Retailer 5£8,534 GBP
Retailer 13£8,678 GBP
Retailer 4£8,828 GBP
Retailer 15£9,334 GBP
Retailer 1£11,217 GBP
Retailer 12£12,755 GBP
Retailer 6£13,501 GBP
Retailer 11£14,875 GBP
Retailer 9£15,711 GBP
Retailer 10£19,139 GBP
Retailer 14£19,490 GBP
Taylor and Hart£28,247 GBP
Retailer 17£45,907 GBP

31 data points across 18 retailers

22 retailers£6,501 GBP to £28,247 GBP

A+
Cheapest Retailer
-
£6,501 GBP
$8,710 USD
A
Retailer 2
-
£7,357 GBP
$9,857 USD
View
A
Retailer 3
-
£7,651 GBP
$10,251 USD
View
A
Retailer 4
-
£8,239 GBP
$11,039 USD
View
Final sale: no returns
A
Retailer 5
-
£8,434 GBP
$11,300 USD
View
A
Retailer 6
-
£8,534 GBP
$11,434 USD
View
A
Retailer 7
-
£8,678 GBP
$11,627 USD
View
Retailer 8
-
£8,732 GBP
$11,700 USD
View
Price last confirmed 14 days ago
A
Retailer 9
-
£8,828 GBP
$11,829 USD
View
A
Retailer 10
-
£9,334 GBP
$12,507 USD
View
Retailer 11
-
£9,410 GBP
$12,608 USD
View
Price last confirmed 14 days ago
A
Retailer 12
-
£11,217 GBP
View
A
Retailer 13
-
£12,755 GBP
$17,090 USD
View
A
Retailer 14
-
£13,501 GBP
View
B+
Retailer 15
-
£14,875 GBP
View
B+
Retailer 16
-
£15,711 GBP
$21,051 USD
View
B+
Retailer 17
-
£16,241 GBP
$21,761 USD
View
B+
Retailer 18
-
£19,139 GBP
ZAR 414,282 ZAR
View
Retailer 19
-
£19,490 GBP
A$40,176 AUD
View
Price last confirmed 8 days ago
Most Expensive
B
Taylor and Hart
EUEARCY · Oct 30
£28,247 GBP
$37,847 USD
View
19 more retailers have this diamond
Prices start from £6,501 GBPSave up to £21,746 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+
5.05ct Radiant
£6,501 GBP