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Round|Natural|GIA

0.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6551872090

Certificate GIA 6551872090

Diamond specifications and retailer prices

From $470 AUD
As of November 5, 2026
Save $1,841 AUD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,311 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 6551872090. Listed at 19 retailers as of November 4, 2026, with prices from $470 to $2,311, a $1,841 spread on the same certified stone. NZ Jewellers lists it at $2,311. 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 angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6551872090
Dimensions5.10 × 5.08 × 3.20 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Cloud
Top View
5.10 mm5.08 mm0.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551872090
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.8%

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: Nov 5
Current: $2,311 AUD|Low: $470 AUD|High: $2,336 AUD|Avg: $852 AUD|-1.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 13$470 AUD
Retailer 8$557 AUD
Retailer 17$564 AUD
Retailer 7$570 AUD
Retailer 5$603 AUD
Retailer 9$650 AUD
Retailer 10$650 AUD
Retailer 19$696 AUD
Retailer 14$736 AUD
Retailer 2$754 AUD
Retailer 6$756 AUD
Retailer 12$780 AUD
Retailer 3$790 AUD
Retailer 4$839 AUD
Retailer 11$907 AUD
Retailer 15$934 AUD
Retailer 16$1,031 AUD
Retailer 18$1,391 AUD
NZ Jewellers$2,311 AUD

20 data points across 19 retailers

19 retailers$470 AUD to $2,311 AUD

A
Cheapest Retailer
-
$470 AUD
A
Retailer 2
-
$557 AUD
View
Final sale: no returns
A
Retailer 3
-
$564 AUD
View
A
Retailer 4
-
$570 AUD
View
A
Retailer 5
-
$603 AUD
View
Retailer 6
-
$650 AUD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$650 AUD
View
A
Retailer 8
-
$696 AUD
View
A
Retailer 9
-
$736 AUD
View
A
Retailer 10
-
$754 AUD
View
A
Retailer 11
-
$756 AUD
View
A
Retailer 12
-
$780 AUD
View
A
Retailer 13
-
$790 AUD
View
A
Retailer 14
-
$839 AUD
View
B+
Retailer 15
-
$907 AUD
View
B+
Retailer 16
-
$934 AUD
View
B+
Retailer 17
-
$1,031 AUD
View
B
Retailer 18
-
$1,391 AUD
View
Most Expensive
B
NZ Jewellers
40e9093a-c60a-43a0-ac9e-4bf6456f55ad · Nov 4
$2,311 AUD
$1,618 USD
View
18 more retailers have this diamond
Prices start from $470 AUDSave up to $1,841 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
$470 AUD