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Round|Natural|IGI

1.02ct J VVS1 Round Natural Diamond

VG • J/VVS1 • IGI 425091447

Shape and cutting style on the report: Round brilliant

Certificate IGI 425091447

Diamond specifications and retailer prices

From £1,311 GBP
As of November 6, 2026
Save £2,229 GBP (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,540 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 VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI 425091447. Listed at 15 retailers as of November 5, 2026, with prices from £1,311 to £3,540, a £2,229 spread on the same certified stone. NZ Jewellers lists it at £3,540. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.02
Carat
J
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.3°
Pavilion angle40°
OriginNatural
Grading LabIGI
CertificateIGI 425091447
Dimensions6.27 × 6.30 × 4.04 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.27 mm6.30 mm1.02 ctJ / VVS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 425091447
Side View
Table 55.0%Crown 37.3°Girdle: UNDPavilion 40°Culet: NoneDepth 64.3%

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 6
Current: £3,540 GBP|Low: £1,227 GBP|High: £3,540 GBP|Avg: £1,731 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 16£1,311 GBP
Retailer 14£1,339 GBP
Retailer 3£1,345 GBP
Retailer 9£1,352 GBP
Retailer 7£1,451 GBP
Retailer 15£1,451 GBP
Retailer 5£1,482 GBP
Retailer 4£1,518 GBP
Retailer 8£1,553 GBP
Retailer 2£1,584 GBP
Retailer 6£1,675 GBP
Retailer 10£1,707 GBP
Retailer 11£1,771 GBP
Retailer 12£1,969 GBP
Retailer 17£2,060 GBP
Retailer 13£2,535 GBP
NZ Jewellers£3,540 GBP

38 data points across 17 retailers

15 retailers£1,311 GBP to £3,540 GBP

A
Cheapest Retailer
-
£1,311 GBP
A
Retailer 2
-
£1,339 GBP
View
Final sale: no returns
Retailer 3
-
£1,352 GBP
View
Price last confirmed 109 days ago
A
Retailer 4
-
£1,451 GBP
View
A
Retailer 5
-
£1,482 GBP
View
A
Retailer 6
-
£1,518 GBP
View
B+
Retailer 7
-
£1,553 GBP
View
A
Retailer 8
-
£1,584 GBP
View
B+
Retailer 9
-
£1,675 GBP
View
A
Retailer 10
-
£1,707 GBP
View
B+
Retailer 11
-
£1,771 GBP
View
B+
Retailer 12
-
£1,969 GBP
View
B+
Retailer 13
-
£2,060 GBP
View
B
Retailer 14
-
£2,535 GBP
View
Most Expensive
C
NZ Jewellers
0bbefab0-cbcf-45d4-9c84-fa170c845d3e · Nov 5
£3,540 GBP
$4,764 USD
View
14 more retailers have this diamond
Prices start from £1,311 GBPSave up to £2,229 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
£1,311 GBP