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Radiant|Lab Grown|IGI

5.18ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG744514803

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

Certificate IGI LG744514803

Diamond specifications and retailer prices

From €7,631 EUR
$8,525 USD
As of October 30, 2026
Save €17,013 EUR (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €24,643 EUR at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 5.18ct lab-grown radiant diamond

This 5.18ct 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 LG744514803 or 744514803. Listed at 15 retailers as of October 30, 2026, with prices from €7,631 to €24,643, a €17,013 spread on the same certified stone. Frank Darling lists it at €24,643. 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

5.18
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744514803
Dimensions11.90 × 8.56 × 6.05 mm
L/W Ratio1.39
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 mm8.56 mm5.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744514803
Side View
Table 65.0%Crown 37.7°Girdle: ThickPavilion 37.2°Culet: NoneDepth 70.7%

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: €24,643 EUR|Low: €7,631 EUR|High: €55,791 EUR|Avg: €15,666 EUR|-18.3%
Frank Darling
Retailer 2
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Retailer 15
October 30, 2026
Retailer 10€7,631 EUR
Retailer 12€7,751 EUR
Retailer 6€7,918 EUR
Retailer 4€7,936 EUR
Retailer 15€8,772 EUR
Retailer 13€9,846 EUR
Retailer 11€10,242 EUR
Retailer 9€10,687 EUR
Retailer 3€10,988 EUR
Retailer 7€11,021 EUR
Retailer 2€15,619 EUR
Retailer 5€17,204 EUR
Retailer 8€17,533 EUR
Frank Darling€24,643 EUR
Retailer 14€47,619 EUR

40 data points across 15 retailers

15 retailers€7,631 EUR to €24,643 EUR

A+
Cheapest Retailer
-
€7,631 EUR
$8,525 USD
A
Retailer 2
-
€7,751 EUR
$8,659 USD
View
A
Retailer 3
-
€7,918 EUR
$8,846 USD
View
A
Retailer 4
-
€7,936 EUR
$8,866 USD
View
A
Retailer 5
-
€8,772 EUR
$9,800 USD
View
A
Retailer 6
-
€9,846 EUR
$11,000 USD
View
A
Retailer 7
-
€10,242 EUR
$11,442 USD
View
A
Retailer 8
-
€10,687 EUR
$11,940 USD
View
A
Retailer 9
-
€10,988 EUR
$12,276 USD
View
A
Retailer 10
-
€11,021 EUR
$12,313 USD
View
Final sale: no returns
A
Retailer 11
-
€15,619 EUR
$17,450 USD
View
Retailer 12
-
€17,204 EUR
View
Price last confirmed 8 days ago
B+
Retailer 13
-
€17,533 EUR
£15,424 GBP
View
Most Expensive
B+
Frank Darling
P80I-50EL · Oct 31
€24,643 EUR
$27,532 USD
View
13 more retailers have this diamond
Prices start from €7,631 EURSave up to €17,013 EUR

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+
5.18ct Radiant
€7,631 EUR