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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 HK$66,885 HKD
$8,525 USD
As of October 30, 2026
Save HK$149,122 HKD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$216,006 HKD at Frank Darling · As of October 29, 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 29, 2026, with prices from HK$66,885 to HK$216,006, a HK$149,122 spread on the same certified stone. Frank Darling lists it at HK$216,006. 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: HK$216,006 HKD|Low: HK$66,885 HKD|High: HK$489,022 HKD|Avg: HK$145,188 HKD|-18.3%
Frank Darling
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
October 30, 2026
Retailer 10HK$66,885 HKD
Retailer 12HK$67,936 HKD
Retailer 6HK$69,403 HKD
Retailer 4HK$69,560 HKD
Retailer 15HK$76,888 HKD
Retailer 13HK$86,303 HKD
Retailer 11HK$89,770 HKD
Retailer 9HK$93,678 HKD
Retailer 3HK$96,314 HKD
Retailer 7HK$96,604 HKD
Retailer 2HK$136,907 HKD
Retailer 5HK$150,796 HKD
Retailer 8HK$153,685 HKD
Frank DarlingHK$216,006 HKD
Retailer 14HK$417,391 HKD

39 data points across 15 retailers

15 retailersHK$66,885 HKD to HK$216,006 HKD

A+
Cheapest Retailer
-
HK$66,885 HKD
$8,525 USD
A
Retailer 2
-
HK$67,936 HKD
$8,659 USD
View
A
Retailer 3
-
HK$69,403 HKD
$8,846 USD
View
A
Retailer 4
-
HK$69,560 HKD
$8,866 USD
View
A
Retailer 5
-
HK$76,888 HKD
$9,800 USD
View
A
Retailer 6
-
HK$86,303 HKD
$11,000 USD
View
A
Retailer 7
-
HK$89,770 HKD
$11,442 USD
View
A
Retailer 8
-
HK$93,678 HKD
$11,940 USD
View
A
Retailer 9
-
HK$96,314 HKD
$12,276 USD
View
A
Retailer 10
-
HK$96,604 HKD
$12,313 USD
View
Final sale: no returns
A
Retailer 11
-
HK$136,907 HKD
$17,450 USD
View
Retailer 12
-
HK$150,796 HKD
€18,305 EUR
View
Price last confirmed 7 days ago
B+
Retailer 13
-
HK$153,685 HKD
£15,424 GBP
View
Most Expensive
B+
Frank Darling
P80I-50EL · Oct 29
HK$216,006 HKD
$27,532 USD
View
13 more retailers have this diamond
Prices start from HK$66,885 HKDSave up to HK$149,122 HKD

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
HK$66,885 HKD