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Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG833668426

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

Certificate IGI LG833668426

Diamond specifications and retailer prices

From £3,114 GBP
$4,172 USD
As of November 1, 2026
Save £17,328 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £20,442 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 LG833668426 or 833668426. Listed at 22 retailers as of November 1, 2026, with prices from £3,114 to £20,442, a £17,328 spread on the same certified stone. Do Amore Diamonds lists it at £20,442. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833668426
Dimensions11.23 × 7.94 × 5.27 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
11.23 mm7.94 mm4.02 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833668426
Side View
Table 64.0%Crown 42.3°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 66.4%

Caratlytics Score

How it works →
A
Excellent
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 1
Current: £20,442 GBP|Low: £3,114 GBP|High: £20,442 GBP|Avg: £7,446 GBP
Do Amore Diamonds
Retailer 2
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Retailer 21
November 2, 2026
Retailer 15£3,114 GBP
Retailer 2£3,169 GBP
Retailer 6£3,327 GBP
Retailer 10£3,436 GBP
Retailer 20£3,489 GBP
Retailer 8£3,495 GBP
Retailer 21£4,571 GBP
Retailer 18£4,754 GBP
Retailer 13£4,892 GBP
Retailer 17£4,932 GBP
Retailer 4£5,357 GBP
Retailer 19£5,894 GBP
Retailer 12£6,004 GBP
Retailer 16£7,877 GBP
Retailer 5£8,097 GBP
Retailer 9£8,478 GBP
Retailer 3£9,488 GBP
Retailer 14£10,409 GBP
Retailer 11£13,571 GBP
Retailer 7£16,978 GBP
Do Amore Diamonds£20,442 GBP

6 data points across 21 retailers

22 retailers£3,114 GBP to £20,442 GBP

A
Cheapest Retailer
-
£3,114 GBP
$4,172 USD
A
Retailer 2
-
£3,146 GBP
$4,215 USD
View
A
Retailer 3
-
£3,169 GBP
View
A
Retailer 4
-
£3,327 GBP
$4,458 USD
View
Final sale: no returns
A
Retailer 5
-
£3,436 GBP
$4,604 USD
View
A
Retailer 6
-
£3,489 GBP
$4,675 USD
View
A
Retailer 7
-
£4,571 GBP
$6,125 USD
View
B+
Retailer 8
-
£4,754 GBP
$6,370 USD
View
A
Retailer 9
-
£4,892 GBP
View
B+
Retailer 10
-
£4,932 GBP
$6,608 USD
View
B+
Retailer 11
-
£5,357 GBP
View
B+
Retailer 12
-
£5,894 GBP
€7,521 EUR
View
B+
Retailer 13
-
£6,004 GBP
$8,045 USD
View
B+
Retailer 14
-
£7,877 GBP
View
B
Retailer 15
-
£8,097 GBP
ZAR 175,267 ZAR
View
B
Retailer 16
-
£8,478 GBP
$11,360 USD
View
B
Retailer 17
-
£9,488 GBP
$12,713 USD
View
B
Retailer 18
-
£10,409 GBP
$13,947 USD
View
B
Retailer 19
-
£13,571 GBP
$18,183 USD
View
B
Retailer 20
-
£15,792 GBP
$21,160 USD
View
B
Retailer 21
-
£16,978 GBP
$22,749 USD
View
Most Expensive
B
Do Amore Diamonds
27-AE3080ABF · Nov 2
£20,442 GBP
$27,390 USD
View
21 more retailers have this diamond
Prices start from £3,114 GBPSave up to £17,328 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
£3,114 GBP