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Radiant|Lab Grown|IGI

4.06ct E IF Radiant Lab Grown Diamond

GD • E/IF • IGI LG631407023

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

Certificate IGI LG631407023

Diamond specifications and retailer prices

From £2,394 GBP
$3,188 USD
As of October 29, 2026
Save £8,239 GBP (77%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £10,633 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.06ct lab-grown radiant diamond

This 4.06ct 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 LG631407023 or 631407023. Listed at 25 retailers as of October 29, 2026, with prices from £2,394 to £10,633, a £8,239 spread on the same certified stone. Brilliant Earth lists it at £10,633. 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

4.06
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631407023
Dimensions11.82 × 7.83 × 5.18 mm
L/W Ratio1.51
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
11.82 mm7.83 mm4.06 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631407023
Side View
Table 66.0%Crown 31.4°Girdle: MediumPavilion 33°Culet: NoneDepth 66.2%

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 29
Current: £10,633 GBP|Low: £1,422 GBP|High: £10,633 GBP|Avg: £3,536 GBP|+71.0%
Brilliant Earth
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
October 30, 2026
Retailer 7£2,316 GBP
Retailer 13£2,394 GBP
Retailer 10£2,540 GBP
Retailer 6£2,562 GBP
Retailer 3£2,598 GBP
Retailer 8£3,161 GBP
Retailer 2£3,350 GBP
Retailer 5£3,728 GBP
Retailer 16£4,280 GBP
Retailer 15£4,292 GBP
Retailer 9£4,776 GBP
Retailer 11£5,278 GBP
Retailer 17£6,229 GBP
Retailer 12£6,319 GBP
Retailer 18£6,495 GBP
Retailer 14£6,902 GBP
Retailer 4£8,640 GBP
Brilliant Earth£10,633 GBP

32 data points across 18 retailers

25 retailers£2,394 GBP to £10,633 GBP

Retailer 1
-
£1,270 GBP
$1,691 USD
Price last confirmed 22 days ago
Retailer 2
-
£1,473 GBP
$1,962 USD
View
Price last confirmed 27 days ago
Retailer 3
-
£1,473 GBP
$1,962 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£1,525 GBP
$2,031 USD
View
Price last confirmed 35 days ago
Retailer 5
-
£2,316 GBP
€2,937 EUR
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£2,394 GBP
$3,188 USD
View
Final sale: no returns
A
Retailer 7
-
£2,540 GBP
$3,382 USD
View
B+
Retailer 8
-
£2,562 GBP
$3,412 USD
View
B+
Retailer 9
-
£2,598 GBP
$3,460 USD
View
Retailer 10
-
£2,761 GBP
$3,677 USD
View
Price last confirmed 25 days ago
Retailer 11
-
£3,161 GBP
A$6,476 AUD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£3,350 GBP
View
B+
Retailer 13
-
£3,728 GBP
$4,965 USD
View
B+
Retailer 14
-
£4,280 GBP
View
Retailer 15
-
£4,284 GBP
$5,704 USD
View
Price last confirmed 94 days ago
B+
Retailer 16
-
£4,292 GBP
$5,715 USD
View
B+
Retailer 17
-
£4,776 GBP
$6,360 USD
View
B
Retailer 18
-
£5,278 GBP
ZAR 113,556 ZAR
View
B
Retailer 19
-
£5,933 GBP
$7,901 USD
View
B
Retailer 20
-
£6,229 GBP
$8,295 USD
View
B
Retailer 21
-
£6,319 GBP
View
B
Retailer 22
-
£6,495 GBP
$8,650 USD
View
B
Retailer 23
-
£6,902 GBP
$9,191 USD
View
B
Retailer 24
-
£8,640 GBP
$11,506 USD
View
Most Expensive
B
Brilliant Earth
10239960A · Oct 29
£10,633 GBP
$14,160 USD
View
24 more retailers have this diamond
Prices start from £2,394 GBPSave up to £8,239 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
4.06ct Radiant
£2,394 GBP