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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 $390 AUD
$274 USD
As of October 30, 2026
Save $1,167 AUD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,953 AUD at MOH London · As of October 29, 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 28, 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: $1,953 AUD|Low: $268 AUD|High: $1,965 AUD|Avg: $846 AUD|+0.6%
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
October 30, 2026
Retailer 6$268 AUD
Retailer 10$390 AUD
Retailer 14$453 AUD
Retailer 2$470 AUD
Retailer 3$484 AUD
Retailer 11$484 AUD
Retailer 4$712 AUD
Retailer 13$803 AUD
Retailer 7$876 AUD
Retailer 8$900 AUD
Retailer 5$988 AUD
Retailer 9$1,489 AUD
Retailer 12$1,557 AUD
MOH London$1,953 AUD

25 data points across 14 retailers

11 retailers$390 AUD to $1,557 AUD

A
Cheapest Retailer
-
$390 AUD
$274 USD
A
Retailer 2
-
$453 AUD
$318 USD
View
A
Retailer 3
-
$470 AUD
$330 USD
View
A
Retailer 4
-
$484 AUD
$340 USD
View
A
Retailer 5
-
$484 AUD
$340 USD
View
B+
Retailer 6
-
$803 AUD
$564 USD
View
B+
Retailer 7
-
$876 AUD
ZAR 9,944 ZAR
View
B+
Retailer 8
-
$900 AUD
€602 EUR
View
C
Retailer 9
-
$1,489 AUD
$1,046 USD
View
C
Retailer 10
-
$1,557 AUD
$1,094 USD
View
Most Expensive
MOH London
LG375961157 · Oct 29
$1,953 AUD
£1,080 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $390 AUDSave up to $1,167 AUD

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
$390 AUD