Radiant|Lab Grown|IGI

5.03ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG744513735

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

Certificate IGI LG744513735

Diamond specifications and retailer prices

From £6,183 GBP
$8,284 USD
As of October 30, 2026
Save £13,777 GBP (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £19,960 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 5.03ct lab-grown radiant diamond

This 5.03ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744513735 or 744513735. Listed at 15 retailers as of October 29, 2026, with prices from £6,183 to £19,960, a £13,777 spread on the same certified stone. Frank Darling lists it at £19,960. 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

5.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744513735
Dimensions11.90 × 8.50 × 5.89 mm
L/W Ratio1.40
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
11.90 mm8.50 mm5.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744513735
Side View
Table 60.0%Crown 39°Girdle: Slightly ThickPavilion 35.9°Culet: NoneDepth 69.3%

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: Oct 30
Current: £19,960 GBP|Low: £6,183 GBP|High: £45,198 GBP|Avg: £13,482 GBP|-18.3%
Frank Darling
Retailer 2
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Retailer 15
October 30, 2026
Retailer 10£6,183 GBP
Retailer 12£6,283 GBP
Retailer 6£6,412 GBP
Retailer 4£6,430 GBP
Retailer 15£7,113 GBP
Retailer 13£7,978 GBP
Retailer 11£8,299 GBP
Retailer 9£8,549 GBP
Retailer 3£8,903 GBP
Retailer 7£8,928 GBP
Retailer 2£12,643 GBP
Retailer 5£13,929 GBP
Retailer 8£14,205 GBP
Frank Darling£19,960 GBP
Retailer 14£38,578 GBP

39 data points across 15 retailers

15 retailers£6,183 GBP to £19,960 GBP

A+
Cheapest Retailer
-
£6,183 GBP
$8,284 USD
A
Retailer 2
-
£6,283 GBP
$8,418 USD
View
A
Retailer 3
-
£6,412 GBP
$8,591 USD
View
A
Retailer 4
-
£6,430 GBP
$8,615 USD
View
A
Retailer 5
-
£7,113 GBP
$9,530 USD
View
A
Retailer 6
-
£7,978 GBP
$10,689 USD
View
A
Retailer 7
-
£8,299 GBP
$11,120 USD
View
A
Retailer 8
-
£8,549 GBP
$11,455 USD
View
A
Retailer 9
-
£8,903 GBP
$11,929 USD
View
A
Retailer 10
-
£8,928 GBP
$11,963 USD
View
Final sale: no returns
A
Retailer 11
-
£12,643 GBP
$16,940 USD
View
Retailer 12
-
£13,929 GBP
€17,775 EUR
View
Price last confirmed 7 days ago
B+
Retailer 13
-
£14,205 GBP
View
Most Expensive
B+
Frank Darling
P79A-44EL · Oct 29
£19,960 GBP
$26,744 USD
View
13 more retailers have this diamond
Prices start from £6,183 GBPSave up to £13,777 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+
5.03ct Radiant
£6,183 GBP