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Radiant|Lab Grown|IGI

4.11ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG708583531

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

Certificate IGI LG708583531

Diamond specifications and retailer prices

From £1,268 GBP
$1,688 USD
As of October 27, 2026
Save £9,583 GBP (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £10,851 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.11ct lab-grown radiant diamond

This 4.11ct 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 LG708583531 or 708583531. Listed at 25 retailers as of October 27, 2026, with prices from £1,268 to £10,851, a £9,583 spread on the same certified stone. Brilliant Earth lists it at £10,851. 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

4.11
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG708583531
Dimensions11.65 × 7.81 × 5.22 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
11.65 mm7.81 mm4.11 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG708583531
Side View
Table 62.0%Crown 42.5°Girdle: Slightly ThickPavilion 31.9°Culet: NoneDepth 66.8%

Caratlytics Score

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A+
Exceptional
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 27
Current: £10,851 GBP|Low: £1,217 GBP|High: £10,851 GBP|Avg: £3,247 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 30, 2026
Retailer 21£1,268 GBP
Retailer 13£1,419 GBP
Retailer 6£1,470 GBP
Retailer 20£1,596 GBP
Retailer 5£1,648 GBP
Retailer 3£1,701 GBP
Retailer 2£2,084 GBP
Retailer 16£2,103 GBP
Retailer 18£2,313 GBP
Retailer 4£2,314 GBP
Retailer 8£2,757 GBP
Retailer 14£3,044 GBP
Retailer 15£3,130 GBP
Retailer 19£3,156 GBP
Retailer 7£4,092 GBP
Retailer 9£4,203 GBP
Retailer 17£4,206 GBP
Retailer 10£4,255 GBP
Retailer 11£4,913 GBP
Retailer 12£5,160 GBP
Brilliant Earth£10,851 GBP

37 data points across 21 retailers

25 retailers£1,268 GBP to £10,851 GBP

A+
Cheapest Retailer
-
£1,268 GBP
$1,688 USD
A
Retailer 2
-
£1,379 GBP
$1,837 USD
View
A
Retailer 3
-
£1,419 GBP
$1,890 USD
View
Final sale: no returns
A
Retailer 4
-
£1,470 GBP
$1,958 USD
View
Retailer 5
-
£1,470 GBP
$1,958 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
£1,596 GBP
$2,125 USD
View
A
Retailer 7
-
£1,648 GBP
$2,195 USD
View
A
Retailer 8
-
£1,701 GBP
HK$17,700 HKD
View
A
Retailer 9
-
£2,084 GBP
View
A
Retailer 10
-
£2,103 GBP
$2,800 USD
View
A
Retailer 11
-
£2,313 GBP
€2,933 EUR
View
A
Retailer 12
-
£2,314 GBP
$3,082 USD
View
A
Retailer 13
-
£2,757 GBP
$3,671 USD
View
A
Retailer 14
-
£3,044 GBP
View
A
Retailer 15
-
£3,130 GBP
ZAR 67,342 ZAR
View
Retailer 16
-
£3,156 GBP
A$6,465 AUD
View
Price last confirmed 7 days ago
A
Retailer 17
-
£3,784 GBP
$5,039 USD
View
A
Retailer 18
-
£3,963 GBP
$5,277 USD
View
A
Retailer 19
-
£4,092 GBP
$5,449 USD
View
A
Retailer 20
-
£4,203 GBP
$5,597 USD
View
A
Retailer 21
-
£4,206 GBP
View
A
Retailer 22
-
£4,255 GBP
$5,666 USD
View
A
Retailer 23
-
£4,913 GBP
SGD 8,842 SGD
View
B+
Retailer 24
-
£5,160 GBP
$6,872 USD
View
Most Expensive
B
Brilliant Earth
14297338A · Oct 29
£10,851 GBP
$14,450 USD
View
24 more retailers have this diamond
Prices start from £1,268 GBPSave up to £9,583 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+
4.11ct Radiant
£1,268 GBP