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Radiant|Lab Grown|IGI

5.09ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508855

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

Certificate IGI LG754508855

Diamond specifications and retailer prices

From HK$57,799 HKD
$7,367 USD
As of October 30, 2026
Save HK$208,926 HKD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$266,725 HKD at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 5.09ct lab-grown radiant diamond

This 5.09ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508855 or 754508855. Listed at 13 retailers as of October 30, 2026, with prices from HK$57,799 to HK$266,725, a HK$208,926 spread on the same certified stone. Michael Trio lists it at HK$266,725. 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

5.09
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508855
Dimensions8.73 × 8.73 × 5.67 mm
L/W Ratio1.00
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
8.73 mm8.73 mm5.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508855
Side View
Table 65.0%Crown 42.7°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 64.9%

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$266,725 HKD|Low: HK$57,799 HKD|High: HK$288,038 HKD|Avg: HK$139,174 HKD|-7.4%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 8HK$57,799 HKD
Retailer 7HK$59,847 HKD
Retailer 13HK$72,769 HKD
Retailer 10HK$78,331 HKD
Retailer 4HK$80,811 HKD
Retailer 6HK$88,119 HKD
Retailer 9HK$116,273 HKD
Retailer 2HK$119,591 HKD
Retailer 12HK$141,021 HKD
Retailer 3HK$187,756 HKD
Retailer 5HK$212,436 HKD
Retailer 11HK$233,944 HKD
Michael TrioHK$266,725 HKD

28 data points across 13 retailers

13 retailersHK$57,799 HKD to HK$266,725 HKD

A
Cheapest Retailer
-
HK$57,799 HKD
$7,367 USD
A
Retailer 2
-
HK$59,847 HKD
$7,628 USD
View
A
Retailer 3
-
HK$72,769 HKD
$9,275 USD
View
A
Retailer 4
-
HK$78,331 HKD
View
A
Retailer 5
-
HK$80,811 HKD
$10,300 USD
View
A
Retailer 6
-
HK$88,119 HKD
£8,844 GBP
View
A
Retailer 7
-
HK$116,273 HKD
$14,820 USD
View
A
Retailer 8
-
HK$119,591 HKD
€14,517 EUR
View
A
Retailer 9
-
HK$141,021 HKD
£14,153 GBP
View
Retailer 10
-
HK$187,756 HKD
A$36,817 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
HK$212,436 HKD
$27,077 USD
View
B
Retailer 12
-
HK$233,944 HKD
$29,818 USD
View
Most Expensive
B
Michael Trio
5984198460 · Oct 31
HK$266,725 HKD
SGD 45,941 SGD
View
12 more retailers have this diamond
Prices start from HK$57,799 HKDSave up to HK$208,926 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
5.09ct Radiant
HK$57,799 HKD