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Round|Natural|IGI

1.30ct J IF Round Natural Diamond

EX • J/IF • IGI 645414303

Shape and cutting style on the report: Round brilliant

Certificate IGI 645414303

Diamond specifications and retailer prices

From £2,223 GBP
As of November 4, 2026
Save £2,214 GBP (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,436 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 645414303. Listed at 16 retailers as of November 4, 2026, with prices from £2,223 to £4,436, a £2,214 spread on the same certified stone. NZ Jewellers lists it at £4,436. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 645414303
Dimensions6.91 × 6.96 × 4.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.91 mm6.96 mm1.30 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 645414303
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 41.3°Culet: NoneDepth 63.5%

Caratlytics Score

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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 4
Current: £2,651 GBP|Low: £2,178 GBP|High: £4,309 GBP|Avg: £2,934 GBP|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£2,223 GBP
Retailer 8£2,350 GBP
Retailer 9£2,644 GBP
Retailer 1£2,651 GBP
Retailer 4£2,844 GBP
Retailer 2£2,956 GBP
Retailer 7£3,003 GBP
Retailer 3£3,108 GBP
Retailer 6£4,258 GBP

40 data points across 9 retailers

16 retailers£2,223 GBP to £4,436 GBP

A
Cheapest Retailer
-
£2,223 GBP
A
Retailer 2
-
£2,261 GBP
View
A
Retailer 3
-
£2,350 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,458 GBP
View
A
Retailer 5
-
£2,493 GBP
View
Retailer 6
-
£2,546 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£2,546 GBP
View
A
Retailer 8
-
£2,644 GBP
View
A
Retailer 9
-
£2,651 GBP
View
A
Retailer 10
-
£2,654 GBP
View
A
Retailer 11
-
£2,844 GBP
View
A
Retailer 12
-
£2,938 GBP
View
A
Retailer 13
-
£2,956 GBP
View
A
Retailer 14
-
£3,108 GBP
View
B
Retailer 15
-
£4,258 GBP
View
Most Expensive
B
NZ Jewellers
96faee36-dbd8-4084-9f26-cf2b0b786fe9 · Nov 5
£4,436 GBP
$5,938 USD
View
15 more retailers have this diamond
Prices start from £2,223 GBPSave up to £2,214 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
£2,223 GBP