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Radiant|Lab Grown|IGI

4.01ct E IF Radiant Lab Grown Diamond

GD • E/IF • IGI LG654456161

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

Certificate IGI LG654456161

Diamond specifications and retailer prices

From £1,229 GBP
$1,647 USD
As of October 30, 2026
Save £6,520 GBP (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £7,749 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 4.01ct lab-grown radiant diamond

This 4.01ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG654456161 or 654456161. Listed at 23 retailers as of October 29, 2026, with prices from £1,229 to £7,749, a £6,520 spread on the same certified stone. Diamond Quarter lists it at £7,749. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.01
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle31.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654456161
Dimensions11.57 × 7.79 × 5.09 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.57 mm7.79 mm4.01 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654456161
Side View
Table 64.0%Crown 41.9°Girdle: MediumPavilion 31.7°Culet: NoneDepth 65.3%

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: Oct 30
Current: £2,020 GBP|Low: £1,216 GBP|High: £7,001 GBP|Avg: £2,990 GBP|-6.3%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 7£1,229 GBP
Retailer 4£1,337 GBP
Retailer 8£1,376 GBP
Retailer 12£1,425 GBP
Retailer 5£1,552 GBP
Retailer 17£1,602 GBP
Retailer 18£1,643 GBP
Retailer 1£2,020 GBP
Retailer 10£2,039 GBP
Retailer 13£2,533 GBP
Retailer 19£2,672 GBP
Retailer 3£2,957 GBP
Retailer 15£3,035 GBP
Retailer 11£3,152 GBP
Retailer 6£3,842 GBP
Retailer 2£3,882 GBP
Retailer 16£4,094 GBP
Retailer 21£4,135 GBP
Retailer 20£4,683 GBP
Retailer 9£5,005 GBP
Retailer 14£6,985 GBP

39 data points across 21 retailers

23 retailers£1,229 GBP to £7,749 GBP

A
Cheapest Retailer
-
£1,229 GBP
$1,647 USD
A
Retailer 2
-
£1,337 GBP
$1,792 USD
View
A
Retailer 3
-
£1,376 GBP
$1,844 USD
View
Final sale: no returns
A
Retailer 4
-
£1,425 GBP
$1,910 USD
View
Retailer 5
-
£1,469 GBP
$1,968 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
£1,552 GBP
$2,080 USD
View
A
Retailer 7
-
£1,602 GBP
$2,147 USD
View
A
Retailer 8
-
£1,643 GBP
HK$17,200 HKD
View
A
Retailer 9
-
£2,020 GBP
View
A
Retailer 10
-
£2,039 GBP
$2,732 USD
View
A
Retailer 11
-
£2,533 GBP
$3,394 USD
View
A
Retailer 12
-
£2,672 GBP
$3,580 USD
View
A
Retailer 13
-
£2,957 GBP
View
A
Retailer 14
-
£3,035 GBP
ZAR 65,687 ZAR
View
Retailer 15
-
£3,152 GBP
A$6,498 AUD
View
Price last confirmed 8 days ago
A
Retailer 16
-
£3,842 GBP
$5,148 USD
View
B+
Retailer 17
-
£3,882 GBP
$5,201 USD
View
A
Retailer 18
-
£4,094 GBP
View
B+
Retailer 19
-
£4,135 GBP
$5,540 USD
View
B+
Retailer 20
-
£4,683 GBP
$6,275 USD
View
B+
Retailer 21
-
£5,005 GBP
$6,706 USD
View
Retailer 22
-
£6,985 GBP
A$14,399 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Diamond Quarter
4.01IFELG61DFF7N · Oct 29
£7,749 GBP
View
22 more retailers have this diamond
Prices start from £1,229 GBPSave up to £6,520 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
4.01ct Radiant
£1,229 GBP