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Round|Natural|IGI

1.30ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 642434702

Shape and cutting style on the report: Round brilliant

Certificate IGI 642434702

Diamond specifications and retailer prices

From £1,534 GBP
As of November 6, 2026
Save £2,580 GBP (63%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,113 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 642434702. Listed at 17 retailers as of November 5, 2026, with prices from £1,534 to £4,113, a £2,580 spread on the same certified stone. NZ Jewellers lists it at £4,113. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 642434702
Dimensions6.95 × 6.91 × 4.36 mm
L/W Ratio1.01
Culet sizePointed
Top View
6.95 mm6.91 mm1.30 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642434702
Side View
Table 55.0%Crown 36.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,113 GBP|Low: £1,534 GBP|High: £4,113 GBP|Avg: £2,363 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
November 6, 2026
Retailer 2£1,534 GBP
Retailer 5£1,831 GBP
Retailer 3£1,967 GBP
Retailer 11£1,967 GBP
Retailer 12£2,043 GBP
Retailer 6£2,106 GBP
Retailer 4£2,270 GBP
Retailer 7£2,302 GBP
Retailer 10£2,394 GBP
Retailer 8£2,401 GBP
Retailer 9£3,437 GBP
NZ Jewellers£4,113 GBP

25 data points across 12 retailers

17 retailers£1,534 GBP to £4,113 GBP

A
Cheapest Retailer
-
£1,534 GBP
A
Retailer 2
-
£1,762 GBP
View
A
Retailer 3
-
£1,798 GBP
View
A
Retailer 4
-
£1,815 GBP
View
Final sale: no returns
A
Retailer 5
-
£1,831 GBP
View
A
Retailer 6
-
£1,884 GBP
View
A
Retailer 7
-
£1,939 GBP
View
Retailer 8
-
£1,967 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£1,967 GBP
View
A
Retailer 10
-
£2,043 GBP
View
A
Retailer 11
-
£2,106 GBP
View
A
Retailer 12
-
£2,270 GBP
View
A
Retailer 13
-
£2,302 GBP
View
A
Retailer 14
-
£2,394 GBP
View
B+
Retailer 15
-
£2,401 GBP
View
B+
Retailer 16
-
£3,437 GBP
View
Most Expensive
B
NZ Jewellers
fee57791-aca5-48c5-bcf7-1be0f502de75 · Nov 5
£4,113 GBP
$5,536 USD
View
16 more retailers have this diamond
Prices start from £1,534 GBPSave up to £2,580 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
1.30ct Round
£1,534 GBP