Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG823669955

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

Certificate IGI LG823669955

Diamond specifications and retailer prices

From £3,413 GBP
$4,545 USD
As of October 30, 2026
Save £12,824 GBP (79%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £16,237 GBP at Mervis Diamond Importers · As of October 29, 2026
View at Mervis Diamond Importers

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 very-good cut grade and certified by IGI LG823669955 or 823669955. Listed at 23 retailers as of October 29, 2026, with prices from £3,413 to £16,237, a £12,824 spread on the same certified stone. Mervis Diamond Importers lists it at £16,237. 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

4.02
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823669955
Dimensions11.03 × 7.86 × 5.40 mm
L/W Ratio1.40
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
11.03 mm7.86 mm4.02 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823669955
Side View
Table 65.0%Crown 42.8°Girdle: MED-STKPavilion 36.4°Culet: NoneDepth 68.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £16,237 GBP|Low: £3,413 GBP|High: £23,827 GBP|Avg: £9,655 GBP|-18.2%
Mervis Diamond Importers
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
October 23, 2026
Retailer 10£3,413 GBP
Retailer 6£3,854 GBP
Retailer 4£4,021 GBP
Retailer 11£4,715 GBP
Retailer 15£5,100 GBP
Retailer 2£5,619 GBP
Retailer 16£5,723 GBP
Retailer 8£6,237 GBP
Retailer 13£8,103 GBP
Retailer 3£9,064 GBP
Retailer 17£9,292 GBP
Retailer 12£9,961 GBP
Retailer 7£10,990 GBP
Retailer 14£14,270 GBP
Retailer 9£14,358 GBP
Mervis Diamond Importers£16,237 GBP
Retailer 5£23,684 GBP

28 data points across 17 retailers

23 retailers£3,413 GBP to £16,237 GBP

A
Cheapest Retailer
-
£3,413 GBP
$4,545 USD
Retailer 2
-
£3,442 GBP
$4,584 USD
View
Price last confirmed 22 days ago
Retailer 3
-
£3,607 GBP
$4,804 USD
View
Price last confirmed 16 days ago
Retailer 4
-
£3,993 GBP
$5,317 USD
View
Price last confirmed 27 days ago
Retailer 5
-
£3,993 GBP
$5,317 USD
View
Price last confirmed 17 days ago
Retailer 6
-
£4,021 GBP
$5,355 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
£4,715 GBP
$6,279 USD
View
Retailer 8
-
£5,100 GBP
$6,791 USD
View
Price last confirmed 14 days ago
Retailer 9
-
£5,232 GBP
$6,967 USD
View
Price last confirmed 25 days ago
Retailer 10
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£5,619 GBP
€7,126 EUR
View
Price last confirmed 7 days ago
Retailer 11
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£5,723 GBP
View
Price last confirmed 14 days ago
Retailer 12
-
£6,237 GBP
View
Price last confirmed 14 days ago
B
Retailer 13
-
£8,103 GBP
$10,791 USD
View
Retailer 14
-
£9,064 GBP
View
Price last confirmed 15 days ago
Retailer 15
-
£9,292 GBP
ZAR 199,907 ZAR
View
Price last confirmed 15 days ago
B
Retailer 16
-
£9,961 GBP
$13,265 USD
View
Retailer 17
-
£10,990 GBP
$14,635 USD
View
Price last confirmed 14 days ago
B
Retailer 18
-
£14,270 GBP
$19,002 USD
View
B
Retailer 19
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£14,358 GBP
$19,120 USD
View
B
Retailer 20
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£15,815 GBP
$21,060 USD
View
B
Retailer 21
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£15,852 GBP
$21,110 USD
View
B
Retailer 22
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£15,890 GBP
$21,160 USD
View
Most Expensive
B
Mervis Diamond Importers
1984816712 · Oct 29
£16,237 GBP
$21,622 USD
View
22 more retailers have this diamond
Prices start from £3,413 GBPSave up to £12,824 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
£3,413 GBP