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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 £244 GBP
As of November 5, 2026
Save £958 GBP (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,202 GBP 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 £244 to £1,202, a £958 spread on the same certified stone. NZ Jewellers lists it at £1,202. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,202 GBP|Low: £244 GBP|High: £1,215 GBP|Avg: £443 GBP|-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£244 GBP
Retailer 8£290 GBP
Retailer 17£293 GBP
Retailer 7£296 GBP
Retailer 5£314 GBP
Retailer 9£338 GBP
Retailer 10£338 GBP
Retailer 19£362 GBP
Retailer 14£383 GBP
Retailer 2£392 GBP
Retailer 6£393 GBP
Retailer 12£406 GBP
Retailer 3£411 GBP
Retailer 4£436 GBP
Retailer 11£472 GBP
Retailer 15£486 GBP
Retailer 16£536 GBP
Retailer 18£724 GBP
NZ Jewellers£1,202 GBP

20 data points across 19 retailers

19 retailers£244 GBP to £1,202 GBP

A
Cheapest Retailer
-
£244 GBP
A
Retailer 2
-
£290 GBP
View
Final sale: no returns
A
Retailer 3
-
£293 GBP
View
A
Retailer 4
-
£296 GBP
View
A
Retailer 5
-
£314 GBP
View
Retailer 6
-
£338 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£338 GBP
View
A
Retailer 8
-
£362 GBP
View
A
Retailer 9
-
£383 GBP
View
A
Retailer 10
-
£392 GBP
View
A
Retailer 11
-
£393 GBP
View
A
Retailer 12
-
£406 GBP
View
A
Retailer 13
-
£411 GBP
View
A
Retailer 14
-
£436 GBP
View
B+
Retailer 15
-
£472 GBP
View
B+
Retailer 16
-
£486 GBP
View
B+
Retailer 17
-
£536 GBP
View
B
Retailer 18
-
£724 GBP
View
Most Expensive
B
NZ Jewellers
40e9093a-c60a-43a0-ac9e-4bf6456f55ad · Nov 4
£1,202 GBP
$1,618 USD
View
18 more retailers have this diamond
Prices start from £244 GBPSave up to £958 GBP

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
£244 GBP