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Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG816630988

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

Certificate IGI LG816630988

Diamond specifications and retailer prices

From HK$34,474 HKD
$4,394 USD
As of October 30, 2026
Save HK$108,185 HKD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$142,659 HKD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 LG816630988 or 816630988. Listed at 17 retailers as of October 30, 2026, with prices from HK$34,474 to HK$142,659, a HK$108,185 spread on the same certified stone. Taylor and Hart lists it at HK$142,659. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816630988
Dimensions11.08 × 7.88 × 5.40 mm
L/W Ratio1.41
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
11.08 mm7.88 mm4.02 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816630988
Side View
Table 63.0%Crown 43.6°Girdle: Slightly ThickPavilion 35.7°Culet: NoneDepth 68.5%

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: HK$51,856 HKD|Low: HK$34,474 HKD|High: HK$171,990 HKD|Avg: HK$68,181 HKD|-17.1%
Retailer 1
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
Taylor and Hart
October 30, 2026
Retailer 6HK$34,474 HKD
Retailer 12HK$36,129 HKD
Retailer 4HK$38,609 HKD
Retailer 8HK$39,997 HKD
Retailer 16HK$39,997 HKD
Retailer 11HK$40,327 HKD
Retailer 14HK$45,278 HKD
Retailer 7HK$49,977 HKD
Retailer 1HK$51,856 HKD
Retailer 13HK$52,041 HKD
Retailer 5HK$56,317 HKD
Retailer 10HK$61,801 HKD
Retailer 15HK$61,887 HKD
Retailer 3HK$74,824 HKD
Retailer 9HK$83,250 HKD
Retailer 2HK$111,131 HKD
Taylor and HartHK$142,659 HKD

39 data points across 17 retailers

17 retailersHK$34,474 HKD to HK$142,659 HKD

A
Cheapest Retailer
-
HK$34,474 HKD
$4,394 USD
A
Retailer 2
-
HK$36,129 HKD
$4,605 USD
View
A
Retailer 3
-
HK$38,609 HKD
$4,921 USD
View
Final sale: no returns
A
Retailer 4
-
HK$39,997 HKD
$5,098 USD
View
Retailer 5
-
HK$39,997 HKD
$5,098 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
HK$40,327 HKD
$5,140 USD
View
A
Retailer 7
-
HK$45,278 HKD
$5,771 USD
View
A
Retailer 8
-
HK$49,977 HKD
$6,370 USD
View
A
Retailer 9
-
HK$51,856 HKD
£5,204 GBP
View
A
Retailer 10
-
HK$52,041 HKD
$6,633 USD
View
B+
Retailer 11
-
HK$56,317 HKD
£5,652 GBP
View
Retailer 12
-
HK$61,801 HKD
€7,502 EUR
View
Price last confirmed 7 days ago
B+
Retailer 13
-
HK$61,887 HKD
$7,888 USD
View
B+
Retailer 14
-
HK$74,824 HKD
$9,537 USD
View
B+
Retailer 15
-
HK$83,250 HKD
£8,355 GBP
View
B
Retailer 16
-
HK$111,131 HKD
$14,165 USD
View
Most Expensive
B
Taylor and Hart
RDWU3MF · Oct 30
HK$142,659 HKD
$18,183 USD
View
16 more retailers have this diamond
Prices start from HK$34,474 HKDSave up to HK$108,185 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
4.02ct Radiant
HK$34,474 HKD