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Round|Natural|GIA

0.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6545445321

Certificate GIA 6545445321

Diamond specifications and retailer prices

From $486 AUD
As of November 4, 2026
Save $2,044 AUD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,530 AUD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6545445321. Listed at 17 retailers as of November 4, 2026, with prices from $486 to $2,530, a $2,044 spread on the same certified stone. NZ Jewellers lists it at $2,530. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6545445321
Dimensions5.14 × 5.12 × 3.17 mm
L/W Ratio1.00
Top View
5.14 mm5.12 mm0.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545445321
Side View
Table 59.0%Crown 33°Girdle: Sli. ThickPavilion 41.6°Culet: NDepth 61.7%

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: Nov 4
Current: $2,530 AUD|Low: $486 AUD|High: $2,541 AUD|Avg: $959 AUD|-0.4%
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
Retailer 14
Retailer 15
November 6, 2026
Retailer 12$486 AUD
Retailer 10$660 AUD
Retailer 6$694 AUD
Retailer 3$707 AUD
Retailer 7$710 AUD
Retailer 15$757 AUD
Retailer 11$806 AUD
Retailer 4$843 AUD
Retailer 8$843 AUD
Retailer 14$903 AUD
Retailer 9$944 AUD
Retailer 2$957 AUD
Retailer 5$1,017 AUD
Retailer 13$1,514 AUD
NZ Jewellers$2,530 AUD

28 data points across 15 retailers

17 retailers$486 AUD to $2,530 AUD

A
Cheapest Retailer
-
$486 AUD
A
Retailer 2
-
$566 AUD
View
Retailer 3
-
$571 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$660 AUD
View
Retailer 5
-
$694 AUD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$707 AUD
View
Retailer 7
-
$710 AUD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$757 AUD
View
A
Retailer 9
-
$806 AUD
View
B+
Retailer 10
-
$843 AUD
View
B+
Retailer 11
-
$843 AUD
View
B+
Retailer 12
-
$903 AUD
View
B+
Retailer 13
-
$944 AUD
View
B+
Retailer 14
-
$957 AUD
View
B+
Retailer 15
-
$1,017 AUD
View
B
Retailer 16
-
$1,514 AUD
View
Most Expensive
B
NZ Jewellers
63652d9c-1ccd-479f-967d-807cd90fb452 · Nov 4
$2,530 AUD
$1,771 USD
View
16 more retailers have this diamond
Prices start from $486 AUDSave up to $2,044 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 Round
$486 AUD