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Round|Natural|GIA

1.00ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 6565520791

Certificate GIA 6565520791

Diamond specifications and retailer prices

From £1,860 GBP
As of October 31, 2026
Save £2,599 GBP (58%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £4,459 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6565520791. Listed at 28 retailers as of October 31, 2026, with prices from £1,860 to £4,459, a £2,599 spread on the same certified stone. NZ Jewellers lists it at £4,459. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565520791
Dimensions6.39 × 6.42 × 3.98 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle, Indented Natural
Top View
6.39 mm6.42 mm1.00 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565520791
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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: Oct 31
Current: £4,459 GBP|Low: £1,859 GBP|High: £4,459 GBP|Avg: £2,635 GBP
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 19
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Retailer 22
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Retailer 24
November 4, 2026
Retailer 14£1,860 GBP
Retailer 15£1,905 GBP
Retailer 7£2,033 GBP
Retailer 5£2,077 GBP
Retailer 13£2,078 GBP
Retailer 11£2,139 GBP
Retailer 9£2,225 GBP
Retailer 10£2,319 GBP
Retailer 19£2,390 GBP
Retailer 23£2,408 GBP
Retailer 21£2,496 GBP
Retailer 16£2,559 GBP
Retailer 6£2,610 GBP
Retailer 18£2,632 GBP
Retailer 20£2,637 GBP
Retailer 22£2,637 GBP
Retailer 17£2,666 GBP
Retailer 24£2,676 GBP
Retailer 3£2,713 GBP
Retailer 2£2,719 GBP
Retailer 4£2,982 GBP
Retailer 12£3,146 GBP
Retailer 8£4,280 GBP
NZ Jewellers£4,459 GBP

27 data points across 24 retailers

28 retailers£1,860 GBP to £4,459 GBP

A
Cheapest Retailer
-
£1,860 GBP
A
Retailer 2
-
£1,905 GBP
View
A
Retailer 3
-
£2,033 GBP
View
A
Retailer 4
-
£2,077 GBP
View
A
Retailer 5
-
£2,078 GBP
View
A
Retailer 6
-
£2,139 GBP
View
Final sale: no returns
A
Retailer 7
-
£2,225 GBP
View
A
Retailer 8
-
£2,319 GBP
View
A
Retailer 9
-
£2,390 GBP
View
A
Retailer 10
-
£2,408 GBP
View
B+
Retailer 11
-
£2,496 GBP
View
B+
Retailer 12
-
£2,559 GBP
View
B+
Retailer 13
-
£2,610 GBP
View
Retailer 14
-
£2,612 GBP
View
Price last confirmed 8 days ago
B+
Retailer 15
-
£2,632 GBP
View
B+
Retailer 16
-
£2,637 GBP
View
B+
Retailer 17
-
£2,637 GBP
View
B+
Retailer 18
-
£2,666 GBP
View
B+
Retailer 19
-
£2,676 GBP
View
B+
Retailer 20
-
£2,713 GBP
View
B+
Retailer 21
-
£2,719 GBP
View
B+
Retailer 22
-
£2,810 GBP
View
B+
Retailer 23
-
£2,982 GBP
View
B
Retailer 24
-
£3,146 GBP
View
B+
Retailer 25
-
£3,284 GBP
View
B
Retailer 26
-
£3,706 GBP
View
B
Retailer 27
-
£4,280 GBP
View
Most Expensive
B
NZ Jewellers
bcebcf9a-2b27-43c9-8cdc-51ca1a560b21 · Nov 2
£4,459 GBP
$6,020 USD
View
27 more retailers have this diamond
Prices start from £1,860 GBPSave up to £2,599 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
£1,860 GBP