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Radiant|Lab Grown|IGI

0.51ct D VS2 Radiant Lab Grown Diamond

EX • D/VS2 • IGI LG817666139

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

Certificate IGI LG817666139

Diamond specifications and retailer prices

From HK$1,553 HKD
$198 USD
As of November 1, 2026
Save HK$2,570 HKD (62%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$9,546 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817666139 or 817666139. Listed at 10 retailers as of October 31, 2026, with a 165% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817666139
Dimensions5.59 × 3.97 × 2.67 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
5.59 mm3.97 mm0.51 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817666139
Side View
Table 62.0%Crown 41°Girdle: MediumPavilion 38.9°Culet: NoneDepth 67.3%

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: Nov 1
Current: HK$9,546 HKD|Low: HK$1,553 HKD|High: HK$9,655 HKD|Avg: HK$3,251 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9HK$1,553 HKD
Retailer 6HK$1,961 HKD
Retailer 4HK$2,018 HKD
Retailer 2HK$2,319 HKD
Retailer 8HK$2,356 HKD
Retailer 5HK$2,759 HKD
Retailer 3HK$2,824 HKD
Retailer 7HK$3,397 HKD
MOH LondonHK$9,546 HKD

44 data points across 9 retailers

10 retailersHK$1,553 HKD to HK$4,123 HKD

A
Cheapest Retailer
-
HK$1,553 HKD
$198 USD
Retailer 2
-
HK$1,961 HKD
$250 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
HK$2,018 HKD
€245 EUR
View
B+
Retailer 4
-
HK$2,319 HKD
£233 GBP
View
B+
Retailer 5
-
HK$2,356 HKD
A$462 AUD
View
B+
Retailer 6
-
HK$2,759 HKD
£277 GBP
View
B+
Retailer 7
-
HK$2,824 HKD
$360 USD
View
B
Retailer 8
-
HK$3,397 HKD
$433 USD
View
B
Retailer 9
-
HK$4,123 HKD
$526 USD
View
Most Expensive
MOH London
LG817666139 · Nov 1
HK$9,546 HKD
£958 GBP
View
Price under review
9 more retailers have this diamond
Prices start from HK$1,553 HKDSave up to HK$2,570 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
0.51ct Radiant
HK$1,553 HKD