Radiant|Lab Grown|IGI

4.05ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG626422994

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

Certificate IGI LG626422994

Diamond specifications and retailer prices

From £3,288 GBP
$4,379 USD
As of October 24, 2026
Save £2,877 GBP (47%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £14,974 GBP at Do Amore Diamonds · As of October 23, 2026
View at Do Amore Diamonds

About this 4.05ct lab-grown radiant diamond

This 4.05ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG626422994 or 626422994. Listed at 28 retailers as of October 24, 2026, with a 87% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626422994
Dimensions11.27 × 8.11 × 5.31 mm
L/W Ratio1.39
Culet sizePointed
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
11.27 mm8.11 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626422994
Side View
Table 63.0%Crown 31.7°Girdle: MediumPavilion 34.2°Culet: NoneDepth 65.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 24
Current: £14,974 GBP|Low: £2,176 GBP|High: £14,974 GBP|Avg: £5,743 GBP
Do Amore Diamonds
Retailer 2
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Retailer 5
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Retailer 8
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Retailer 11
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Retailer 22
October 29, 2026
Retailer 5£2,176 GBP
Retailer 10£2,546 GBP
Retailer 22£2,643 GBP
Retailer 7£2,844 GBP
Retailer 19£3,288 GBP
Retailer 11£3,480 GBP
Retailer 21£3,627 GBP
Retailer 13£3,748 GBP
Retailer 6£4,220 GBP
Retailer 18£4,463 GBP
Retailer 17£4,678 GBP
Retailer 14£4,818 GBP
Retailer 16£5,864 GBP
Retailer 2£6,165 GBP
Retailer 9£6,360 GBP
Retailer 8£6,950 GBP
Retailer 20£7,100 GBP
Retailer 12£7,360 GBP
Retailer 4£7,828 GBP
Retailer 15£9,739 GBP
Retailer 3£10,076 GBP
Do Amore Diamonds£14,974 GBP

37 data points across 22 retailers

28 retailers£3,288 GBP to £6,165 GBP

Retailer 1
-
£2,176 GBP
$2,898 USD
Price last confirmed 8 days ago
Retailer 2
-
£2,176 GBP
$2,898 USD
View
Price last confirmed 22 days ago
Retailer 3
-
£2,524 GBP
$3,361 USD
View
Price last confirmed 27 days ago
Retailer 4
-
£2,546 GBP
$3,390 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£2,552 GBP
$3,398 USD
View
Price last confirmed 30 days ago
Retailer 6
-
£2,643 GBP
$3,520 USD
View
Price last confirmed 7 days ago
Retailer 7
-
£2,776 GBP
$3,697 USD
View
Price last confirmed 32 days ago
Retailer 8
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£2,919 GBP
$3,887 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
£3,288 GBP
$4,379 USD
View
A
Retailer 10
-
£3,480 GBP
HK$36,200 HKD
View
Retailer 11
-
£3,481 GBP
$4,636 USD
View
Price last confirmed 19 days ago
Retailer 12
-
£3,481 GBP
$4,636 USD
View
Price last confirmed 8 days ago
Retailer 13
-
£3,627 GBP
$4,830 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£3,748 GBP
View
Price last confirmed 7 days ago
Retailer 15
-
£4,082 GBP
$5,436 USD
View
Price last confirmed 29 days ago
Retailer 16
-
£4,220 GBP
$5,620 USD
View
Price last confirmed 9 days ago
Retailer 17
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£4,678 GBP
$6,230 USD
View
Price last confirmed 9 days ago
Retailer 18
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£4,818 GBP
View
Price last confirmed 8 days ago
Retailer 19
-
£5,864 GBP
ZAR 126,156 ZAR
View
Price last confirmed 10 days ago
B+
Retailer 20
-
£6,165 GBP
$8,210 USD
View
Retailer 21
-
£6,360 GBP
$8,469 USD
View
Price last confirmed 8 days ago
Retailer 22
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£6,950 GBP
$9,255 USD
View
Price last confirmed 9 days ago
Retailer 23
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£7,100 GBP
View
Price last confirmed 9 days ago
Retailer 24
-
£7,360 GBP
$9,801 USD
View
Price last confirmed 8 days ago
Retailer 25
-
£7,828 GBP
A$16,038 AUD
View
Price last confirmed 21 days ago
Retailer 26
-
£9,739 GBP
$12,970 USD
View
Price last confirmed 7 days ago
Retailer 27
-
£10,076 GBP
SGD 18,133 SGD
View
Price last confirmed 9 days ago
Most Expensive
Do Amore Diamonds
27-8603DF48A · Oct 23
£14,974 GBP
$19,940 USD
View
Price last confirmed 7 days ago
27 more retailers have this diamond
Prices start from £3,288 GBPSave up to £2,877 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
4.05ct Radiant
£3,288 GBP