Radiant|Lab Grown|IGI

4.01ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG825687987

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

Certificate IGI LG825687987

Diamond specifications and retailer prices

From £5,149 GBP
HK$53,900 HKD
As of October 30, 2026
Save £11,185 GBP (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £16,334 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 4.01ct lab-grown radiant diamond

This 4.01ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825687987 or 825687987. Listed at 19 retailers as of October 30, 2026, with prices from £5,149 to £16,334, a £11,185 spread on the same certified stone. With Clarity lists it at £16,334. 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

4.01
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687987
Dimensions11.32 × 7.86 × 5.21 mm
L/W Ratio1.44
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
11.32 mm7.86 mm4.01 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825687987
Side View
Table 65.0%Crown 43.3°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £5,149 GBP|Low: £4,168 GBP|High: £16,553 GBP|Avg: £8,195 GBP
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
With Clarity
October 27, 2026
Retailer 3£4,168 GBP
Retailer 4£4,336 GBP
Retailer 2£4,444 GBP
Retailer 1£5,149 GBP
Retailer 11£5,413 GBP
Retailer 8£5,603 GBP
Retailer 5£6,108 GBP
Retailer 14£6,442 GBP
Retailer 9£7,061 GBP
Retailer 10£7,695 GBP
Retailer 13£8,878 GBP
Retailer 12£9,102 GBP
Retailer 6£12,002 GBP
Retailer 7£15,497 GBP
Retailer 15£15,755 GBP
With Clarity£16,334 GBP

27 data points across 16 retailers

19 retailers£5,149 GBP to £16,334 GBP

Retailer 1
-
£3,722 GBP
$4,987 USD
Price last confirmed 13 days ago
Retailer 2
-
£3,900 GBP
$5,226 USD
View
Price last confirmed 15 days ago
Retailer 3
-
£4,317 GBP
$5,784 USD
View
Price last confirmed 14 days ago
Retailer 4
-
£4,317 GBP
$5,784 USD
View
Price last confirmed 27 days ago
Retailer 5
-
£4,336 GBP
$5,810 USD
View
Price last confirmed 11 days ago
Retailer 6
-
£4,444 GBP
$5,954 USD
View
Price last confirmed 10 days ago
Retailer 7
-
£5,125 GBP
$6,867 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
£5,149 GBP
HK$53,900 HKD
View
Retailer 9
-
£5,413 GBP
$7,253 USD
View
Price last confirmed 14 days ago
Retailer 10
-
£5,603 GBP
View
Price last confirmed 13 days ago
Retailer 11
-
£6,108 GBP
View
Price last confirmed 14 days ago
Retailer 12
-
£6,442 GBP
$8,632 USD
View
Price last confirmed 14 days ago
Retailer 13
-
£7,695 GBP
$10,310 USD
View
Price last confirmed 13 days ago
Retailer 14
-
£8,878 GBP
View
Price last confirmed 15 days ago
Retailer 15
-
£9,102 GBP
ZAR 197,026 ZAR
View
Price last confirmed 15 days ago
Retailer 16
-
£12,002 GBP
$16,082 USD
View
Price last confirmed 14 days ago
Retailer 17
-
£15,497 GBP
$20,764 USD
View
Price last confirmed 14 days ago
Retailer 18
-
£15,755 GBP
$21,110 USD
View
Price last confirmed 13 days ago
Most Expensive
B
With Clarity
825687987 · Oct 30
£16,334 GBP
$21,886 USD
View
18 more retailers have this diamond
Prices start from £5,149 GBPSave up to £11,185 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.

B+
4.01ct Radiant
£5,149 GBP