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Round|Natural|IGI

1.02ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 478135271

Shape and cutting style on the report: Round brilliant

Certificate IGI 478135271

Diamond specifications and retailer prices

From £1,136 GBP
As of November 4, 2026
Save £1,866 GBP (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,002 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct 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 IGI 478135271. Listed at 15 retailers as of November 4, 2026, with prices from £1,136 to £3,002, a £1,866 spread on the same certified stone. NZ Jewellers lists it at £3,002. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.3°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 478135271
Dimensions6.44 × 6.48 × 3.94 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.44 mm6.48 mm1.02 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 478135271
Side View
Table 60.0%Crown 34.3°Girdle: MED-STKPavilion 41.1°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 4
Current: £3,002 GBP|Low: £1,041 GBP|High: £3,002 GBP|Avg: £1,488 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
November 6, 2026
Retailer 15£1,136 GBP
Retailer 13£1,140 GBP
Retailer 17£1,140 GBP
Retailer 4£1,165 GBP
Retailer 7£1,231 GBP
Retailer 16£1,231 GBP
Retailer 5£1,288 GBP
Retailer 9£1,332 GBP
Retailer 2£1,380 GBP
Retailer 8£1,393 GBP
Retailer 6£1,421 GBP
Retailer 10£1,467 GBP
Retailer 12£1,502 GBP
Retailer 11£1,667 GBP
Retailer 3£1,755 GBP
Retailer 14£2,168 GBP
NZ Jewellers£3,002 GBP

39 data points across 17 retailers

15 retailers£1,136 GBP to £3,002 GBP

A
Cheapest Retailer
-
£1,136 GBP
Final sale: no returns
A
Retailer 2
-
£1,140 GBP
View
A
Retailer 3
-
£1,140 GBP
View
A
Retailer 4
-
£1,231 GBP
View
A
Retailer 5
-
£1,288 GBP
View
A
Retailer 6
-
£1,332 GBP
View
A
Retailer 7
-
£1,380 GBP
View
Retailer 8
-
£1,393 GBP
View
Price last confirmed 102 days ago
A
Retailer 9
-
£1,421 GBP
View
A
Retailer 10
-
£1,467 GBP
View
A
Retailer 11
-
£1,502 GBP
View
B+
Retailer 12
-
£1,667 GBP
View
B+
Retailer 13
-
£1,755 GBP
View
Retailer 14
-
£2,168 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
NZ Jewellers
3e080f9d-2162-45e2-b8ce-3fcd52c5e002 · Nov 5
£3,002 GBP
$4,041 USD
View
14 more retailers have this diamond
Prices start from £1,136 GBPSave up to £1,866 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
1.02ct Round
£1,136 GBP