Radiant|Natural|GIA

0.51ct D VS1 Radiant Natural Diamond

GD • D/VS1 • GIA 6521492018

Certificate GIA 6521492018

Diamond specifications and retailer prices

From $813 AUD
As of November 4, 2026
Save $1,219 AUD (60%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,053 AUD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6521492018. Listed at 25 retailers as of November 4, 2026, with a 150% 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
D
Colour
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6521492018
Dimensions5.66 × 4.04 × 2.51 mm
L/W Ratio1.40
Top View
5.66 mm4.04 mm0.51 ctD / VS1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6521492018
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.1%

Caratlytics Score

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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: Nov 4
Current: $2,791 AUD|Low: $809 AUD|High: $2,968 AUD|Avg: $1,314 AUD|-6.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11$813 AUD
Retailer 12$880 AUD
Retailer 5$929 AUD
Retailer 7$949 AUD
Retailer 4$959 AUD
Retailer 2$1,071 AUD
Retailer 3$1,073 AUD
Retailer 8$1,103 AUD
Retailer 13$1,150 AUD
Retailer 10$1,294 AUD
Retailer 6$1,359 AUD
Retailer 9$2,031 AUD
NZ Jewellers$2,791 AUD

31 data points across 13 retailers

25 retailers$813 AUD to $2,031 AUD

A
Cheapest Retailer
-
$813 AUD
Final sale: no returns
A
Retailer 2
-
$880 AUD
View
Retailer 3
-
$889 AUD
View
Price last confirmed 42 days ago
Retailer 4
-
$929 AUD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$949 AUD
View
Retailer 6
-
$959 AUD
View
Price last confirmed 8 days ago
Retailer 7
-
$959 AUD
View
Price last confirmed 12 days ago
Retailer 8
-
$974 AUD
View
Price last confirmed 36 days ago
Retailer 9
-
$979 AUD
View
Price last confirmed 53 days ago
Retailer 10
-
$1,011 AUD
View
Price last confirmed 36 days ago
Retailer 11
-
$1,026 AUD
View
Price last confirmed 43 days ago
A
Retailer 12
-
$1,071 AUD
View
A
Retailer 13
-
$1,073 AUD
View
A
Retailer 14
-
$1,103 AUD
View
Retailer 15
-
$1,104 AUD
View
Price last confirmed 61 days ago
Retailer 16
-
$1,123 AUD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
$1,150 AUD
View
B+
Retailer 18
-
$1,294 AUD
View
Retailer 19
-
$1,350 AUD
View
Price last confirmed 25 days ago
B+
Retailer 20
-
$1,359 AUD
View
Retailer 21
-
$1,463 AUD
View
Price last confirmed 33 days ago
B
Retailer 22
-
$2,031 AUD
View
Retailer 23
-
$2,787 AUD
View
Price last confirmed 42 days ago
Retailer 24
-
$2,791 AUD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
d246f97e-490e-4c92-ac9c-00ab8f413077 · Sep 29
$3,053 AUD
$2,137 USD
View
Price last confirmed 37 days ago
24 more retailers have this diamond
Prices start from $813 AUDSave up to $1,219 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
$813 AUD