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Round|Natural|GIA

1.00ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6555655554

Certificate GIA 6555655554

Diamond specifications and retailer prices

From £1,245 GBP
As of November 6, 2026
Save £1,680 GBP (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,499 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6555655554. Listed at 19 retailers as of November 4, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555655554
Dimensions6.44 × 6.47 × 3.94 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Pinpoint, Natural
Top View
6.44 mm6.47 mm1.00 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555655554
Side View
Table 60.0%Crown 31.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 61.0%

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 6
Current: £1,557 GBP|Low: £1,245 GBP|High: £2,968 GBP|Avg: £1,880 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£1,245 GBP
Retailer 4£1,253 GBP
Retailer 1£1,557 GBP
Retailer 8£1,597 GBP
Retailer 2£1,808 GBP
Retailer 3£1,920 GBP
Retailer 5£2,042 GBP
Retailer 6£2,122 GBP
Retailer 7£2,925 GBP

27 data points across 9 retailers

19 retailers£1,245 GBP to £2,925 GBP

A
Cheapest Retailer
-
£1,245 GBP
A
Retailer 2
-
£1,253 GBP
View
A
Retailer 3
-
£1,512 GBP
View
A
Retailer 4
-
£1,557 GBP
View
B+
Retailer 5
-
£1,584 GBP
View
B+
Retailer 6
-
£1,597 GBP
View
Retailer 7
-
£1,674 GBP
View
Price last confirmed 17 days ago
Retailer 8
-
£1,674 GBP
View
Price last confirmed 21 days ago
B+
Retailer 9
-
£1,679 GBP
View
B+
Retailer 10
-
£1,730 GBP
View
Retailer 11
-
£1,751 GBP
View
Price last confirmed 22 days ago
B+
Retailer 12
-
£1,777 GBP
View
B+
Retailer 13
-
£1,808 GBP
View
B+
Retailer 14
-
£1,920 GBP
View
Retailer 15
-
£1,932 GBP
View
Price last confirmed 16 days ago
B+
Retailer 16
-
£2,042 GBP
View
B
Retailer 17
-
£2,122 GBP
View
B
Retailer 18
-
£2,925 GBP
View
Most Expensive
NZ Jewellers
e2a03c81-eade-41cb-9a75-dce9d7588871 · Oct 20
£3,499 GBP
$4,710 USD
View
Price last confirmed 16 days ago
18 more retailers have this diamond
Prices start from £1,245 GBPSave up to £1,680 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
1.00ct Round
£1,245 GBP