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Radiant|Lab Grown|IGI

0.51ct J VS1 Radiant Lab Grown Diamond

VG • J/VS1 • IGI LG375961157

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

Certificate IGI LG375961157

Diamond specifications and retailer prices

From HK$2,150 HKD
$274 USD
As of October 30, 2026
Save HK$6,433 HKD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$10,701 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 J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG375961157 or 375961157. Listed at 11 retailers as of October 30, 2026, with a 299% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG375961157
Dimensions5.10 × 4.04 × 2.72 mm
L/W Ratio1.26
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
5.10 mm4.04 mm0.51 ctJ / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG375961157
Side View
Table 65.5%CrownGirdle: Slightly ThickPavilionCulet: 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: Oct 30
Current: HK$10,701 HKD|Low: HK$1,474 HKD|High: HK$10,831 HKD|Avg: HK$4,659 HKD
MOH London
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
November 1, 2026
Retailer 6HK$1,474 HKD
Retailer 10HK$2,150 HKD
Retailer 14HK$2,495 HKD
Retailer 2HK$2,589 HKD
Retailer 3HK$2,668 HKD
Retailer 11HK$2,668 HKD
Retailer 4HK$3,923 HKD
Retailer 13HK$4,425 HKD
Retailer 7HK$4,829 HKD
Retailer 8HK$4,959 HKD
Retailer 5HK$5,445 HKD
Retailer 9HK$8,207 HKD
Retailer 12HK$8,583 HKD
MOH LondonHK$10,701 HKD

26 data points across 14 retailers

11 retailersHK$2,150 HKD to HK$8,583 HKD

A
Cheapest Retailer
-
HK$2,150 HKD
$274 USD
A
Retailer 2
-
HK$2,495 HKD
$318 USD
View
A
Retailer 3
-
HK$2,589 HKD
$330 USD
View
Retailer 4
-
HK$2,668 HKD
$340 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
HK$2,668 HKD
$340 USD
View
B+
Retailer 6
-
HK$4,425 HKD
$564 USD
View
B+
Retailer 7
-
HK$4,829 HKD
ZAR 9,944 ZAR
View
B+
Retailer 8
-
HK$4,959 HKD
€602 EUR
View
C
Retailer 9
-
HK$8,207 HKD
$1,046 USD
View
C
Retailer 10
-
HK$8,583 HKD
$1,094 USD
View
Most Expensive
MOH London
LG375961157 · Nov 1
HK$10,701 HKD
£1,074 GBP
View
Price under review
10 more retailers have this diamond
Prices start from HK$2,150 HKDSave up to HK$6,433 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$2,150 HKD