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Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG846662876

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

Certificate IGI LG846662876

Diamond specifications and retailer prices

From £2,502 GBP
As of November 2, 2026
Save £14,899 GBP (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £17,401 GBP at With Clarity · As of November 3, 2026
View at With Clarity

About this 4.02ct lab-grown radiant diamond

This 4.02ct 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 LG846662876 or 846662876. Listed at 11 retailers as of November 2, 2026, with prices from £2,502 to £17,401, a £14,899 spread on the same certified stone. With Clarity lists it at £17,401. 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

4.02
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662876
Dimensions11.30 × 8.02 × 5.25 mm
L/W Ratio1.41
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
11.30 mm8.02 mm4.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662876
Side View
Table 62.0%Crown 39.4°Girdle: MediumPavilion 36.3°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £8,837 GBP|Low: £2,502 GBP|High: £19,738 GBP|Avg: £7,125 GBP|-11.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
November 3, 2026
Retailer 4£2,502 GBP
Retailer 7£3,121 GBP
Retailer 9£4,144 GBP
Retailer 8£4,215 GBP
Retailer 6£4,661 GBP
Retailer 3£5,635 GBP
Retailer 5£6,436 GBP
Retailer 10£8,421 GBP
Retailer 1£8,837 GBP
Retailer 2£9,149 GBP
With Clarity£17,401 GBP

12 data points across 11 retailers

11 retailers£2,502 GBP to £17,401 GBP

A+
Cheapest Retailer
-
£2,502 GBP
A
Retailer 2
-
£3,121 GBP
$4,185 USD
View
A
Retailer 3
-
£4,144 GBP
$5,558 USD
View
A
Retailer 4
-
£4,215 GBP
$5,653 USD
View
A
Retailer 5
-
£4,661 GBP
$6,251 USD
View
B+
Retailer 6
-
£5,635 GBP
€7,197 EUR
View
B+
Retailer 7
-
£6,436 GBP
View
B
Retailer 8
-
£8,421 GBP
$11,293 USD
View
B+
Retailer 9
-
£8,837 GBP
$11,851 USD
View
B
Retailer 10
-
£9,149 GBP
$12,270 USD
View
Most Expensive
B
With Clarity
846662876 · Nov 3
£17,401 GBP
$23,336 USD
View
10 more retailers have this diamond
Prices start from £2,502 GBPSave up to £14,899 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+
4.02ct Radiant
£2,502 GBP