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Radiant|Lab Grown|IGI

0.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG782654831

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

Certificate IGI LG782654831

Diamond specifications and retailer prices

From $167 AUD
$117 USD
As of October 24, 2026
Save $1,080 AUD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,309 AUD at MOH London · As of October 19, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782654831 or 782654831. Listed at 19 retailers as of October 24, 2026, with a 649% 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle50.4°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782654831
Dimensions5.57 × 4.05 × 2.56 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.57 mm4.05 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG782654831
Side View
Table 66.0%Crown 50.4°Girdle: MediumPavilion 34.7°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 24
Current: $1,309 AUD|Low: $141 AUD|High: $1,555 AUD|Avg: $490 AUD|-14.8%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 5$142 AUD
Retailer 11$159 AUD
Retailer 19$167 AUD
Retailer 10$189 AUD
Retailer 4$200 AUD
Retailer 20$306 AUD
Retailer 18$315 AUD
Retailer 3$324 AUD
Retailer 16$342 AUD
Retailer 9$360 AUD
Retailer 2$399 AUD
Retailer 17$484 AUD
Retailer 14$496 AUD
Retailer 15$498 AUD
Retailer 7$505 AUD
Retailer 13$512 AUD
Retailer 6$569 AUD
Retailer 12$933 AUD
Retailer 8$1,247 AUD
MOH London$1,309 AUD

42 data points across 20 retailers

19 retailers$167 AUD to $1,247 AUD

Retailer 1
-
$142 AUD
$100 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$167 AUD
$117 USD
View
A
Retailer 3
-
$189 AUD
$133 USD
View
A
Retailer 4
-
$200 AUD
HK$1,100 HKD
View
Retailer 5
-
$306 AUD
$215 USD
View
Price last confirmed 10 days ago
Retailer 6
-
$315 AUD
ZAR 3,578 ZAR
View
Price last confirmed 8 days ago
Retailer 7
-
$324 AUD
€217 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$342 AUD
£189 GBP
View
B+
Retailer 9
-
$360 AUD
$253 USD
View
B+
Retailer 10
-
$399 AUD
$280 USD
View
B+
Retailer 11
-
$484 AUD
£268 GBP
View
B+
Retailer 12
-
$496 AUD
SGD 471 SGD
View
B+
Retailer 13
-
$498 AUD
$350 USD
View
B+
Retailer 14
-
$505 AUD
$355 USD
View
B+
Retailer 15
-
$512 AUD
$360 USD
View
B+
Retailer 16
-
$569 AUD
$400 USD
View
B
Retailer 17
-
$933 AUD
£516 GBP
View
B
Retailer 18
-
$1,247 AUD
$876 USD
View
Most Expensive
MOH London
LG782654831 · Oct 19
$1,309 AUD
£724 GBP
View
Price last confirmed 12 days ago
18 more retailers have this diamond
Prices start from $167 AUDSave up to $1,080 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
$167 AUD