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Round|Natural|GIA

1.00ct J VS1 Round Natural Diamond

EX • J/VS1 • GIA 1565439089

Certificate GIA 1565439089

Diamond specifications and retailer prices

From £1,312 GBP
As of November 4, 2026
Save £2,335 GBP (64%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £3,647 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1565439089. Listed at 24 retailers as of November 4, 2026, with prices from £1,312 to £3,647, a £2,335 spread on the same certified stone. NZ Jewellers lists it at £3,647. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1565439089
Dimensions6.38 × 6.45 × 3.86 mm
L/W Ratio1.01
Top View
6.38 mm6.45 mm1.00 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565439089
Side View
Table 62.0%Crown 33°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 60.3%

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: £3,647 GBP|Low: £1,302 GBP|High: £3,647 GBP|Avg: £1,909 GBP
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 19£1,312 GBP
Retailer 18£1,330 GBP
Retailer 3£1,549 GBP
Retailer 5£1,577 GBP
Retailer 12£1,610 GBP
Retailer 2£1,623 GBP
Retailer 6£1,691 GBP
Retailer 20£1,742 GBP
Retailer 4£1,745 GBP
Retailer 8£1,745 GBP
Retailer 11£1,825 GBP
Retailer 7£1,848 GBP
Retailer 16£1,886 GBP
Retailer 13£2,000 GBP
Retailer 9£2,013 GBP
Retailer 10£2,025 GBP
Retailer 15£2,053 GBP
Retailer 14£2,129 GBP
Retailer 17£3,048 GBP
NZ Jewellers£3,647 GBP

23 data points across 20 retailers

24 retailers£1,312 GBP to £3,647 GBP

A
Cheapest Retailer
-
£1,312 GBP
A
Retailer 2
-
£1,330 GBP
View
A
Retailer 3
-
£1,549 GBP
View
B+
Retailer 4
-
£1,577 GBP
View
B+
Retailer 5
-
£1,610 GBP
View
Final sale: no returns
A
Retailer 6
-
£1,623 GBP
View
B+
Retailer 7
-
£1,691 GBP
View
B+
Retailer 8
-
£1,742 GBP
View
Retailer 9
-
£1,745 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£1,745 GBP
View
B+
Retailer 11
-
£1,825 GBP
View
Retailer 12
-
£1,831 GBP
View
Price last confirmed 10 days ago
B+
Retailer 13
-
£1,848 GBP
View
B+
Retailer 14
-
£1,886 GBP
View
B+
Retailer 15
-
£1,904 GBP
View
B+
Retailer 16
-
£2,000 GBP
View
B+
Retailer 17
-
£2,013 GBP
View
B+
Retailer 18
-
£2,025 GBP
View
B+
Retailer 19
-
£2,053 GBP
View
B+
Retailer 20
-
£2,129 GBP
View
Retailer 21
-
£2,169 GBP
View
Price last confirmed 30 days ago
B
Retailer 22
-
£2,546 GBP
View
B
Retailer 23
-
£3,048 GBP
View
Most Expensive
B
NZ Jewellers
cd1f24ef-a4d3-4560-9d80-b0b4987ede39 · Nov 5
£3,647 GBP
$4,909 USD
View
23 more retailers have this diamond
Prices start from £1,312 GBPSave up to £2,335 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
£1,312 GBP