Round|Natural|GIA

0.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6551872090

Certificate GIA 6551872090

Diamond specifications and retailer prices

From $329 USD
As of November 5, 2026
Save $1,289 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,618 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 6551872090. Listed at 19 retailers as of November 4, 2026, with prices from $329 to $1,618, a $1,289 spread on the same certified stone. NZ Jewellers lists it at $1,618. 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 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,618 USD|Low: $329 USD|High: $1,635 USD|Avg: $597 USD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
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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$329 USD
Retailer 8$390 USD
Retailer 17$395 USD
Retailer 7$399 USD
Retailer 5$422 USD
Retailer 9$455 USD
Retailer 10$455 USD
Retailer 19$487 USD
Retailer 14$515 USD
Retailer 2$528 USD
Retailer 6$529 USD
Retailer 12$546 USD
Retailer 3$553 USD
Retailer 4$587 USD
Retailer 11$635 USD
Retailer 15$654 USD
Retailer 16$722 USD
Retailer 18$974 USD
NZ Jewellers$1,618 USD

20 data points across 19 retailers

19 retailers$329 USD to $1,618 USD

A
Cheapest Retailer
-
$329 USD
A
Retailer 2
-
$390 USD
View
Final sale: no returns
A
Retailer 3
-
$395 USD
View
A
Retailer 4
-
$399 USD
View
A
Retailer 5
-
$422 USD
View
Retailer 6
-
$455 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$455 USD
View
A
Retailer 8
-
$487 USD
View
A
Retailer 9
-
$515 USD
View
A
Retailer 10
-
$528 USD
View
A
Retailer 11
-
$529 USD
View
A
Retailer 12
-
$546 USD
View
A
Retailer 13
-
$553 USD
View
A
Retailer 14
-
$587 USD
View
B+
Retailer 15
-
$635 USD
View
B+
Retailer 16
-
$654 USD
View
B+
Retailer 17
-
$722 USD
View
B
Retailer 18
-
$974 USD
View
Most Expensive
B
NZ Jewellers
40e9093a-c60a-43a0-ac9e-4bf6456f55ad · Nov 4
$1,618 USD
View
18 more retailers have this diamond
Prices start from $329 USDSave up to $1,289 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
$329 USD