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Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG799676750

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

Certificate IGI LG799676750

Diamond specifications and retailer prices

From £3,172 GBP
$4,224 USD
As of October 30, 2026
Save £18,650 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £21,822 GBP at Do Amore Diamonds · As of October 29, 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 LG799676750 or 799676750. Listed at 22 retailers as of October 29, 2026, with prices from £3,172 to £21,822, a £18,650 spread on the same certified stone. Do Amore Diamonds lists it at £21,822. 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 angle42.6°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799676750
Dimensions11.18 × 7.90 × 5.45 mm
L/W Ratio1.42
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
11.18 mm7.90 mm4.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799676750
Side View
Table 66.0%Crown 42.6°Girdle: MediumPavilion 36.6°Culet: NoneDepth 69.0%

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: Oct 30
Current: £21,822 GBP|Low: £3,045 GBP|High: £21,822 GBP|Avg: £6,929 GBP
Do Amore Diamonds
Retailer 2
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Retailer 22
October 30, 2026
Retailer 19£3,172 GBP
Retailer 10£3,225 GBP
Retailer 4£3,324 GBP
Retailer 7£3,478 GBP
Retailer 11£3,553 GBP
Retailer 5£3,680 GBP
Retailer 21£3,680 GBP
Retailer 18£3,717 GBP
Retailer 17£4,788 GBP
Retailer 6£4,883 GBP
Retailer 3£5,076 GBP
Retailer 2£5,281 GBP
Retailer 22£5,697 GBP
Retailer 9£5,734 GBP
Retailer 15£6,229 GBP
Retailer 16£8,455 GBP
Retailer 13£8,645 GBP
Retailer 20£9,363 GBP
Retailer 12£10,129 GBP
Retailer 14£14,142 GBP
Retailer 8£14,533 GBP
Do Amore Diamonds£21,822 GBP

43 data points across 22 retailers

22 retailers£3,172 GBP to £21,822 GBP

A
Cheapest Retailer
-
£3,172 GBP
$4,224 USD
A
Retailer 2
-
£3,225 GBP
$4,295 USD
View
A
Retailer 3
-
£3,324 GBP
$4,427 USD
View
A
Retailer 4
-
£3,478 GBP
$4,631 USD
View
A
Retailer 5
-
£3,553 GBP
$4,731 USD
View
Final sale: no returns
A
Retailer 6
-
£3,680 GBP
$4,900 USD
View
Retailer 7
-
£3,680 GBP
$4,900 USD
View
Price last confirmed 14 days ago
A
Retailer 8
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£3,717 GBP
$4,950 USD
View
A
Retailer 9
-
£4,788 GBP
$6,376 USD
View
A
Retailer 10
-
£4,883 GBP
HK$50,800 HKD
View
A
Retailer 11
-
£5,076 GBP
$6,759 USD
View
B+
Retailer 12
-
£5,281 GBP
View
B+
Retailer 13
-
£5,697 GBP
$7,586 USD
View
B+
Retailer 14
-
£5,734 GBP
View
Retailer 15
-
£6,229 GBP
$8,295 USD
View
Price last confirmed 32 days ago
B+
Retailer 16
-
£8,455 GBP
View
B+
Retailer 17
-
£8,645 GBP
ZAR 185,977 ZAR
View
B
Retailer 18
-
£9,363 GBP
$12,469 USD
View
B
Retailer 19
-
£10,129 GBP
$13,489 USD
View
B
Retailer 20
-
£14,142 GBP
SGD 25,450 SGD
View
B
Retailer 21
-
£14,533 GBP
$19,353 USD
View
Most Expensive
B
Do Amore Diamonds
27-B8965CC60 · Oct 29
£21,822 GBP
$29,060 USD
View
21 more retailers have this diamond
Prices start from £3,172 GBPSave up to £18,650 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
£3,172 GBP