Round|Natural|GIA

0.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6545445321

Certificate GIA 6545445321

Diamond specifications and retailer prices

From $340 USD
As of November 4, 2026
Save $1,431 USD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,771 USD 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 $340 to $1,771, a $1,431 spread on the same certified stone. NZ Jewellers lists it at $1,771. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,771 USD|Low: $340 USD|High: $1,779 USD|Avg: $672 USD|-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$340 USD
Retailer 10$462 USD
Retailer 6$486 USD
Retailer 3$495 USD
Retailer 7$497 USD
Retailer 15$530 USD
Retailer 11$564 USD
Retailer 4$590 USD
Retailer 8$590 USD
Retailer 14$632 USD
Retailer 9$661 USD
Retailer 2$670 USD
Retailer 5$712 USD
Retailer 13$1,060 USD
NZ Jewellers$1,771 USD

28 data points across 15 retailers

17 retailers$340 USD to $1,771 USD

A
Cheapest Retailer
-
$340 USD
A
Retailer 2
-
$396 USD
View
Retailer 3
-
$400 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$462 USD
View
Retailer 5
-
$486 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$495 USD
View
Retailer 7
-
$497 USD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$530 USD
View
A
Retailer 9
-
$564 USD
View
B+
Retailer 10
-
$590 USD
View
B+
Retailer 11
-
$590 USD
View
B+
Retailer 12
-
$632 USD
View
B+
Retailer 13
-
$661 USD
View
B+
Retailer 14
-
$670 USD
View
B+
Retailer 15
-
$712 USD
View
B
Retailer 16
-
$1,060 USD
View
Most Expensive
B
NZ Jewellers
63652d9c-1ccd-479f-967d-807cd90fb452 · Nov 4
$1,771 USD
View
16 more retailers have this diamond
Prices start from $340 USDSave up to $1,431 USD

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
$340 USD